How to eliminate gap on sticky mode?











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0
down vote

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When I deploy this drop down menu in sticky mode (that is when I scroll down the content page) there is a gap in the "books" submenu between "read" and "link 1/link 2/link 3", which is not there in the "video" submenu > "watch/download".
The gap is not there when the navbar is top page.



How can I fix it?






window.onscroll = function() {
myFunction()
};
var navbar = document.getElementById("navbar");
var sticky = navbar.offsetTop;

function myFunction() {
if (window.pageYOffset >= sticky) {
navbar.classList.add("sticky")
} else {
navbar.classList.remove("sticky");
}
}

* {
box-sizing: border-box;
}

body {
margin: 0;
}

img {
display: block;
margin: 0 auto;
}

h2 {
font-family: Times New Roman, serif;
font-size: 17px;
font-style: italic;
color: black;
background-color: white padding: 30px;
text-align: center;
}

.navbar {
overflow: hidden;
background-color: #333;
}

.navbar a {
float: left;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
font-size: 16px;
background-color: #333;
}

#navbar {
overflow: hidden;
background-color: #333;
}

#navbar a {
float: left;
display: block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
font-size: 16px;
background-color: #333;
}

#navbar a:hover {
background-color: #ddd;
color: black;
}

#navbar a.active {
background-color: red;
color: white;
}

#navbar .search-container {
float: right;
}

#navbar input[type=text] {
padding: 6px;
margin-top: 8px;
font-size: 17px;
border: none;
}

#navbar .search-container button {
float: right;
padding: 6px 10px;
margin-top: 8px;
margin-right: 16px;
background: #ddd;
font-size: 17px;
border: none;
cursor: pointer;
}

#navbar .search-container button:hover {
background: #ccc;
}

@media screen and (max-width: 600px) {
#navbar .search-container {
float: none;
}
#navbar a,
.navbar input[type=text],
.navbar .search-container button {
float: none;
display: block;
text-align: left;
width: 100%;
margin: 0;
padding: 14px;
}
#navbar input[type=text] {
border: 1px solid #ccc;
}
}

.content {
padding: 16px;
}

.navbar a:hover,
.dropdown:hover .dropbtn {
background-color: #ddd;
color: black;
}

.sticky {
position: fixed;
top: 0;
width: 100%;
overflow: visible !important;
}

.sticky+.content {
padding-top: 60px;
}

.sticky .dropdown-content {
top: 48px;
}

.subnav {
float: left;
overflow: hidden;
}

.subnav .subnavbtn {
font-size: 16px;
border: none;
outline: none;
color: #f2f2f2;
padding: 14px 16px;
background-color: inherit;
font-family: inherit;
margin: 0;
}

.navbar a:hover,
.subnav:hover .subnavbtn {
background-color: #ddd;
color: #f2f2f2;
}

.subnav-content {
display: none;
position: absolute;
left: 0;
background-color: #333;
width: 100%;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}

.subnav-content a {
float: left;
color: #f2f2f2;
text-decoration: none;
}

.subnav-content a:hover {
background-color: #ddd;
}

.subnav:hover .subnav-content {
display: block;
}

.dropdown {
float: left;
overflow: hidden;
}

.dropdown .dropbtn {
font-size: 16px;
border: none;
outline: none;
color: #f2f2f2;
padding: 14px 16px;
background-color: inherit;
font-family: inherit;
/* Important for vertical
align on mobile phones */
margin: 0;
/* Important for vertical align on mobile
phones */
}

.dropdown-content {
display: none;
position: absolute;
left: 0;
background-color: #333;
min-width: 100%;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}

.dropdown-content a {
float: none;
color: #f2f2f2;
padding: 12px 16px;
text-decoration: none;
display: block;
text-align: left;
}

.dropdown-content a:hover {
background-color: #ddd;
color: black;
}

.dropdown:hover .dropdown-content {
display: block;
}

<!DOCTYPE html>
<html>

<head>
<meta name="viewport" content="width=device-width,
initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
awesome/4.7.0/css/font-awesome.min.css">
</head>

<body>
<div id="navbar">
<a class="active" href="#home">Home</a>
<div class="subnav">
<button class="subnavbtn">Books <i class="fa fa-
caret-down"></i></button>
<div class="subnav-content">
<div class="subnav">
<div class="dropdown">
<button class="dropbtn">Read
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
<a href="#team">PDF 1</a>
<a href="#careers">PDF 2</a>
</div>
</div>
</div>
<div class="subnav">
<button class="subnavbtn">Video <i class="fa fa-
caret-down"></i></button>
<div class="subnav-content">
<a href="#bring">Watch</a>
<a href="#deliver">Download</a>
</div>
</div>
<a href="#contact">Contact</a>
<div class="search-container">
<form action="/action_page.php">
<input type="text" placeholder="Search.." name="search">
<button type="submit"><i class="fa fa-search"></i>
</button>
</form>
</div>
</div>
<div style="padding:0 16px">
<h3>Subnav/dropdown menu inside a Navigation Bar
</h3>
<p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
</div>
</div>
</div>
<div class="content">
</div>
</div>
<h3>Sticky Navigation Example</h3>
<p>The navbar will stick to the top when you reach its scroll position.
</p>
<p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
efficiantur his ad. Eum no molestiae voluptatibus.</p>
</div>
/
</body>

</html>












share|improve this question




























    up vote
    0
    down vote

    favorite












    When I deploy this drop down menu in sticky mode (that is when I scroll down the content page) there is a gap in the "books" submenu between "read" and "link 1/link 2/link 3", which is not there in the "video" submenu > "watch/download".
    The gap is not there when the navbar is top page.



    How can I fix it?






    window.onscroll = function() {
    myFunction()
    };
    var navbar = document.getElementById("navbar");
    var sticky = navbar.offsetTop;

    function myFunction() {
    if (window.pageYOffset >= sticky) {
    navbar.classList.add("sticky")
    } else {
    navbar.classList.remove("sticky");
    }
    }

    * {
    box-sizing: border-box;
    }

    body {
    margin: 0;
    }

    img {
    display: block;
    margin: 0 auto;
    }

    h2 {
    font-family: Times New Roman, serif;
    font-size: 17px;
    font-style: italic;
    color: black;
    background-color: white padding: 30px;
    text-align: center;
    }

    .navbar {
    overflow: hidden;
    background-color: #333;
    }

    .navbar a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 16px;
    background-color: #333;
    }

    #navbar {
    overflow: hidden;
    background-color: #333;
    }

    #navbar a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 16px;
    background-color: #333;
    }

    #navbar a:hover {
    background-color: #ddd;
    color: black;
    }

    #navbar a.active {
    background-color: red;
    color: white;
    }

    #navbar .search-container {
    float: right;
    }

    #navbar input[type=text] {
    padding: 6px;
    margin-top: 8px;
    font-size: 17px;
    border: none;
    }

    #navbar .search-container button {
    float: right;
    padding: 6px 10px;
    margin-top: 8px;
    margin-right: 16px;
    background: #ddd;
    font-size: 17px;
    border: none;
    cursor: pointer;
    }

    #navbar .search-container button:hover {
    background: #ccc;
    }

    @media screen and (max-width: 600px) {
    #navbar .search-container {
    float: none;
    }
    #navbar a,
    .navbar input[type=text],
    .navbar .search-container button {
    float: none;
    display: block;
    text-align: left;
    width: 100%;
    margin: 0;
    padding: 14px;
    }
    #navbar input[type=text] {
    border: 1px solid #ccc;
    }
    }

    .content {
    padding: 16px;
    }

    .navbar a:hover,
    .dropdown:hover .dropbtn {
    background-color: #ddd;
    color: black;
    }

    .sticky {
    position: fixed;
    top: 0;
    width: 100%;
    overflow: visible !important;
    }

    .sticky+.content {
    padding-top: 60px;
    }

    .sticky .dropdown-content {
    top: 48px;
    }

    .subnav {
    float: left;
    overflow: hidden;
    }

    .subnav .subnavbtn {
    font-size: 16px;
    border: none;
    outline: none;
    color: #f2f2f2;
    padding: 14px 16px;
    background-color: inherit;
    font-family: inherit;
    margin: 0;
    }

    .navbar a:hover,
    .subnav:hover .subnavbtn {
    background-color: #ddd;
    color: #f2f2f2;
    }

    .subnav-content {
    display: none;
    position: absolute;
    left: 0;
    background-color: #333;
    width: 100%;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;
    }

    .subnav-content a {
    float: left;
    color: #f2f2f2;
    text-decoration: none;
    }

    .subnav-content a:hover {
    background-color: #ddd;
    }

    .subnav:hover .subnav-content {
    display: block;
    }

    .dropdown {
    float: left;
    overflow: hidden;
    }

    .dropdown .dropbtn {
    font-size: 16px;
    border: none;
    outline: none;
    color: #f2f2f2;
    padding: 14px 16px;
    background-color: inherit;
    font-family: inherit;
    /* Important for vertical
    align on mobile phones */
    margin: 0;
    /* Important for vertical align on mobile
    phones */
    }

    .dropdown-content {
    display: none;
    position: absolute;
    left: 0;
    background-color: #333;
    min-width: 100%;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;
    }

    .dropdown-content a {
    float: none;
    color: #f2f2f2;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
    }

    .dropdown-content a:hover {
    background-color: #ddd;
    color: black;
    }

    .dropdown:hover .dropdown-content {
    display: block;
    }

    <!DOCTYPE html>
    <html>

    <head>
    <meta name="viewport" content="width=device-width,
    initial-scale=1">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
    awesome/4.7.0/css/font-awesome.min.css">
    </head>

    <body>
    <div id="navbar">
    <a class="active" href="#home">Home</a>
    <div class="subnav">
    <button class="subnavbtn">Books <i class="fa fa-
    caret-down"></i></button>
    <div class="subnav-content">
    <div class="subnav">
    <div class="dropdown">
    <button class="dropbtn">Read
    <i class="fa fa-caret-down"></i>
    </button>
    <div class="dropdown-content">
    <a href="#">Link 1</a>
    <a href="#">Link 2</a>
    <a href="#">Link 3</a>
    </div>
    </div>
    <a href="#team">PDF 1</a>
    <a href="#careers">PDF 2</a>
    </div>
    </div>
    </div>
    <div class="subnav">
    <button class="subnavbtn">Video <i class="fa fa-
    caret-down"></i></button>
    <div class="subnav-content">
    <a href="#bring">Watch</a>
    <a href="#deliver">Download</a>
    </div>
    </div>
    <a href="#contact">Contact</a>
    <div class="search-container">
    <form action="/action_page.php">
    <input type="text" placeholder="Search.." name="search">
    <button type="submit"><i class="fa fa-search"></i>
    </button>
    </form>
    </div>
    </div>
    <div style="padding:0 16px">
    <h3>Subnav/dropdown menu inside a Navigation Bar
    </h3>
    <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
    </div>
    </div>
    </div>
    <div class="content">
    </div>
    </div>
    <h3>Sticky Navigation Example</h3>
    <p>The navbar will stick to the top when you reach its scroll position.
    </p>
    <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
    efficiantur his ad. Eum no molestiae voluptatibus.</p>
    </div>
    /
    </body>

    </html>












    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      When I deploy this drop down menu in sticky mode (that is when I scroll down the content page) there is a gap in the "books" submenu between "read" and "link 1/link 2/link 3", which is not there in the "video" submenu > "watch/download".
      The gap is not there when the navbar is top page.



      How can I fix it?






      window.onscroll = function() {
      myFunction()
      };
      var navbar = document.getElementById("navbar");
      var sticky = navbar.offsetTop;

      function myFunction() {
      if (window.pageYOffset >= sticky) {
      navbar.classList.add("sticky")
      } else {
      navbar.classList.remove("sticky");
      }
      }

      * {
      box-sizing: border-box;
      }

      body {
      margin: 0;
      }

      img {
      display: block;
      margin: 0 auto;
      }

      h2 {
      font-family: Times New Roman, serif;
      font-size: 17px;
      font-style: italic;
      color: black;
      background-color: white padding: 30px;
      text-align: center;
      }

      .navbar {
      overflow: hidden;
      background-color: #333;
      }

      .navbar a {
      float: left;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar {
      overflow: hidden;
      background-color: #333;
      }

      #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar a:hover {
      background-color: #ddd;
      color: black;
      }

      #navbar a.active {
      background-color: red;
      color: white;
      }

      #navbar .search-container {
      float: right;
      }

      #navbar input[type=text] {
      padding: 6px;
      margin-top: 8px;
      font-size: 17px;
      border: none;
      }

      #navbar .search-container button {
      float: right;
      padding: 6px 10px;
      margin-top: 8px;
      margin-right: 16px;
      background: #ddd;
      font-size: 17px;
      border: none;
      cursor: pointer;
      }

      #navbar .search-container button:hover {
      background: #ccc;
      }

      @media screen and (max-width: 600px) {
      #navbar .search-container {
      float: none;
      }
      #navbar a,
      .navbar input[type=text],
      .navbar .search-container button {
      float: none;
      display: block;
      text-align: left;
      width: 100%;
      margin: 0;
      padding: 14px;
      }
      #navbar input[type=text] {
      border: 1px solid #ccc;
      }
      }

      .content {
      padding: 16px;
      }

      .navbar a:hover,
      .dropdown:hover .dropbtn {
      background-color: #ddd;
      color: black;
      }

      .sticky {
      position: fixed;
      top: 0;
      width: 100%;
      overflow: visible !important;
      }

      .sticky+.content {
      padding-top: 60px;
      }

      .sticky .dropdown-content {
      top: 48px;
      }

      .subnav {
      float: left;
      overflow: hidden;
      }

      .subnav .subnavbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      margin: 0;
      }

      .navbar a:hover,
      .subnav:hover .subnavbtn {
      background-color: #ddd;
      color: #f2f2f2;
      }

      .subnav-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .subnav-content a {
      float: left;
      color: #f2f2f2;
      text-decoration: none;
      }

      .subnav-content a:hover {
      background-color: #ddd;
      }

      .subnav:hover .subnav-content {
      display: block;
      }

      .dropdown {
      float: left;
      overflow: hidden;
      }

      .dropdown .dropbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      /* Important for vertical
      align on mobile phones */
      margin: 0;
      /* Important for vertical align on mobile
      phones */
      }

      .dropdown-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      min-width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .dropdown-content a {
      float: none;
      color: #f2f2f2;
      padding: 12px 16px;
      text-decoration: none;
      display: block;
      text-align: left;
      }

      .dropdown-content a:hover {
      background-color: #ddd;
      color: black;
      }

      .dropdown:hover .dropdown-content {
      display: block;
      }

      <!DOCTYPE html>
      <html>

      <head>
      <meta name="viewport" content="width=device-width,
      initial-scale=1">
      <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
      awesome/4.7.0/css/font-awesome.min.css">
      </head>

      <body>
      <div id="navbar">
      <a class="active" href="#home">Home</a>
      <div class="subnav">
      <button class="subnavbtn">Books <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <div class="subnav">
      <div class="dropdown">
      <button class="dropbtn">Read
      <i class="fa fa-caret-down"></i>
      </button>
      <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <a href="#">Link 3</a>
      </div>
      </div>
      <a href="#team">PDF 1</a>
      <a href="#careers">PDF 2</a>
      </div>
      </div>
      </div>
      <div class="subnav">
      <button class="subnavbtn">Video <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <a href="#bring">Watch</a>
      <a href="#deliver">Download</a>
      </div>
      </div>
      <a href="#contact">Contact</a>
      <div class="search-container">
      <form action="/action_page.php">
      <input type="text" placeholder="Search.." name="search">
      <button type="submit"><i class="fa fa-search"></i>
      </button>
      </form>
      </div>
      </div>
      <div style="padding:0 16px">
      <h3>Subnav/dropdown menu inside a Navigation Bar
      </h3>
      <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
      </div>
      </div>
      </div>
      <div class="content">
      </div>
      </div>
      <h3>Sticky Navigation Example</h3>
      <p>The navbar will stick to the top when you reach its scroll position.
      </p>
      <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
      efficiantur his ad. Eum no molestiae voluptatibus.</p>
      </div>
      /
      </body>

      </html>












      share|improve this question















      When I deploy this drop down menu in sticky mode (that is when I scroll down the content page) there is a gap in the "books" submenu between "read" and "link 1/link 2/link 3", which is not there in the "video" submenu > "watch/download".
      The gap is not there when the navbar is top page.



      How can I fix it?






      window.onscroll = function() {
      myFunction()
      };
      var navbar = document.getElementById("navbar");
      var sticky = navbar.offsetTop;

      function myFunction() {
      if (window.pageYOffset >= sticky) {
      navbar.classList.add("sticky")
      } else {
      navbar.classList.remove("sticky");
      }
      }

      * {
      box-sizing: border-box;
      }

      body {
      margin: 0;
      }

      img {
      display: block;
      margin: 0 auto;
      }

      h2 {
      font-family: Times New Roman, serif;
      font-size: 17px;
      font-style: italic;
      color: black;
      background-color: white padding: 30px;
      text-align: center;
      }

      .navbar {
      overflow: hidden;
      background-color: #333;
      }

      .navbar a {
      float: left;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar {
      overflow: hidden;
      background-color: #333;
      }

      #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar a:hover {
      background-color: #ddd;
      color: black;
      }

      #navbar a.active {
      background-color: red;
      color: white;
      }

      #navbar .search-container {
      float: right;
      }

      #navbar input[type=text] {
      padding: 6px;
      margin-top: 8px;
      font-size: 17px;
      border: none;
      }

      #navbar .search-container button {
      float: right;
      padding: 6px 10px;
      margin-top: 8px;
      margin-right: 16px;
      background: #ddd;
      font-size: 17px;
      border: none;
      cursor: pointer;
      }

      #navbar .search-container button:hover {
      background: #ccc;
      }

      @media screen and (max-width: 600px) {
      #navbar .search-container {
      float: none;
      }
      #navbar a,
      .navbar input[type=text],
      .navbar .search-container button {
      float: none;
      display: block;
      text-align: left;
      width: 100%;
      margin: 0;
      padding: 14px;
      }
      #navbar input[type=text] {
      border: 1px solid #ccc;
      }
      }

      .content {
      padding: 16px;
      }

      .navbar a:hover,
      .dropdown:hover .dropbtn {
      background-color: #ddd;
      color: black;
      }

      .sticky {
      position: fixed;
      top: 0;
      width: 100%;
      overflow: visible !important;
      }

      .sticky+.content {
      padding-top: 60px;
      }

      .sticky .dropdown-content {
      top: 48px;
      }

      .subnav {
      float: left;
      overflow: hidden;
      }

      .subnav .subnavbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      margin: 0;
      }

      .navbar a:hover,
      .subnav:hover .subnavbtn {
      background-color: #ddd;
      color: #f2f2f2;
      }

      .subnav-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .subnav-content a {
      float: left;
      color: #f2f2f2;
      text-decoration: none;
      }

      .subnav-content a:hover {
      background-color: #ddd;
      }

      .subnav:hover .subnav-content {
      display: block;
      }

      .dropdown {
      float: left;
      overflow: hidden;
      }

      .dropdown .dropbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      /* Important for vertical
      align on mobile phones */
      margin: 0;
      /* Important for vertical align on mobile
      phones */
      }

      .dropdown-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      min-width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .dropdown-content a {
      float: none;
      color: #f2f2f2;
      padding: 12px 16px;
      text-decoration: none;
      display: block;
      text-align: left;
      }

      .dropdown-content a:hover {
      background-color: #ddd;
      color: black;
      }

      .dropdown:hover .dropdown-content {
      display: block;
      }

      <!DOCTYPE html>
      <html>

      <head>
      <meta name="viewport" content="width=device-width,
      initial-scale=1">
      <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
      awesome/4.7.0/css/font-awesome.min.css">
      </head>

      <body>
      <div id="navbar">
      <a class="active" href="#home">Home</a>
      <div class="subnav">
      <button class="subnavbtn">Books <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <div class="subnav">
      <div class="dropdown">
      <button class="dropbtn">Read
      <i class="fa fa-caret-down"></i>
      </button>
      <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <a href="#">Link 3</a>
      </div>
      </div>
      <a href="#team">PDF 1</a>
      <a href="#careers">PDF 2</a>
      </div>
      </div>
      </div>
      <div class="subnav">
      <button class="subnavbtn">Video <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <a href="#bring">Watch</a>
      <a href="#deliver">Download</a>
      </div>
      </div>
      <a href="#contact">Contact</a>
      <div class="search-container">
      <form action="/action_page.php">
      <input type="text" placeholder="Search.." name="search">
      <button type="submit"><i class="fa fa-search"></i>
      </button>
      </form>
      </div>
      </div>
      <div style="padding:0 16px">
      <h3>Subnav/dropdown menu inside a Navigation Bar
      </h3>
      <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
      </div>
      </div>
      </div>
      <div class="content">
      </div>
      </div>
      <h3>Sticky Navigation Example</h3>
      <p>The navbar will stick to the top when you reach its scroll position.
      </p>
      <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
      efficiantur his ad. Eum no molestiae voluptatibus.</p>
      </div>
      /
      </body>

      </html>








      window.onscroll = function() {
      myFunction()
      };
      var navbar = document.getElementById("navbar");
      var sticky = navbar.offsetTop;

      function myFunction() {
      if (window.pageYOffset >= sticky) {
      navbar.classList.add("sticky")
      } else {
      navbar.classList.remove("sticky");
      }
      }

      * {
      box-sizing: border-box;
      }

      body {
      margin: 0;
      }

      img {
      display: block;
      margin: 0 auto;
      }

      h2 {
      font-family: Times New Roman, serif;
      font-size: 17px;
      font-style: italic;
      color: black;
      background-color: white padding: 30px;
      text-align: center;
      }

      .navbar {
      overflow: hidden;
      background-color: #333;
      }

      .navbar a {
      float: left;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar {
      overflow: hidden;
      background-color: #333;
      }

      #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar a:hover {
      background-color: #ddd;
      color: black;
      }

      #navbar a.active {
      background-color: red;
      color: white;
      }

      #navbar .search-container {
      float: right;
      }

      #navbar input[type=text] {
      padding: 6px;
      margin-top: 8px;
      font-size: 17px;
      border: none;
      }

      #navbar .search-container button {
      float: right;
      padding: 6px 10px;
      margin-top: 8px;
      margin-right: 16px;
      background: #ddd;
      font-size: 17px;
      border: none;
      cursor: pointer;
      }

      #navbar .search-container button:hover {
      background: #ccc;
      }

      @media screen and (max-width: 600px) {
      #navbar .search-container {
      float: none;
      }
      #navbar a,
      .navbar input[type=text],
      .navbar .search-container button {
      float: none;
      display: block;
      text-align: left;
      width: 100%;
      margin: 0;
      padding: 14px;
      }
      #navbar input[type=text] {
      border: 1px solid #ccc;
      }
      }

      .content {
      padding: 16px;
      }

      .navbar a:hover,
      .dropdown:hover .dropbtn {
      background-color: #ddd;
      color: black;
      }

      .sticky {
      position: fixed;
      top: 0;
      width: 100%;
      overflow: visible !important;
      }

      .sticky+.content {
      padding-top: 60px;
      }

      .sticky .dropdown-content {
      top: 48px;
      }

      .subnav {
      float: left;
      overflow: hidden;
      }

      .subnav .subnavbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      margin: 0;
      }

      .navbar a:hover,
      .subnav:hover .subnavbtn {
      background-color: #ddd;
      color: #f2f2f2;
      }

      .subnav-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .subnav-content a {
      float: left;
      color: #f2f2f2;
      text-decoration: none;
      }

      .subnav-content a:hover {
      background-color: #ddd;
      }

      .subnav:hover .subnav-content {
      display: block;
      }

      .dropdown {
      float: left;
      overflow: hidden;
      }

      .dropdown .dropbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      /* Important for vertical
      align on mobile phones */
      margin: 0;
      /* Important for vertical align on mobile
      phones */
      }

      .dropdown-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      min-width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .dropdown-content a {
      float: none;
      color: #f2f2f2;
      padding: 12px 16px;
      text-decoration: none;
      display: block;
      text-align: left;
      }

      .dropdown-content a:hover {
      background-color: #ddd;
      color: black;
      }

      .dropdown:hover .dropdown-content {
      display: block;
      }

      <!DOCTYPE html>
      <html>

      <head>
      <meta name="viewport" content="width=device-width,
      initial-scale=1">
      <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
      awesome/4.7.0/css/font-awesome.min.css">
      </head>

      <body>
      <div id="navbar">
      <a class="active" href="#home">Home</a>
      <div class="subnav">
      <button class="subnavbtn">Books <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <div class="subnav">
      <div class="dropdown">
      <button class="dropbtn">Read
      <i class="fa fa-caret-down"></i>
      </button>
      <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <a href="#">Link 3</a>
      </div>
      </div>
      <a href="#team">PDF 1</a>
      <a href="#careers">PDF 2</a>
      </div>
      </div>
      </div>
      <div class="subnav">
      <button class="subnavbtn">Video <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <a href="#bring">Watch</a>
      <a href="#deliver">Download</a>
      </div>
      </div>
      <a href="#contact">Contact</a>
      <div class="search-container">
      <form action="/action_page.php">
      <input type="text" placeholder="Search.." name="search">
      <button type="submit"><i class="fa fa-search"></i>
      </button>
      </form>
      </div>
      </div>
      <div style="padding:0 16px">
      <h3>Subnav/dropdown menu inside a Navigation Bar
      </h3>
      <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
      </div>
      </div>
      </div>
      <div class="content">
      </div>
      </div>
      <h3>Sticky Navigation Example</h3>
      <p>The navbar will stick to the top when you reach its scroll position.
      </p>
      <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
      efficiantur his ad. Eum no molestiae voluptatibus.</p>
      </div>
      /
      </body>

      </html>





      window.onscroll = function() {
      myFunction()
      };
      var navbar = document.getElementById("navbar");
      var sticky = navbar.offsetTop;

      function myFunction() {
      if (window.pageYOffset >= sticky) {
      navbar.classList.add("sticky")
      } else {
      navbar.classList.remove("sticky");
      }
      }

      * {
      box-sizing: border-box;
      }

      body {
      margin: 0;
      }

      img {
      display: block;
      margin: 0 auto;
      }

      h2 {
      font-family: Times New Roman, serif;
      font-size: 17px;
      font-style: italic;
      color: black;
      background-color: white padding: 30px;
      text-align: center;
      }

      .navbar {
      overflow: hidden;
      background-color: #333;
      }

      .navbar a {
      float: left;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar {
      overflow: hidden;
      background-color: #333;
      }

      #navbar a {
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 16px;
      background-color: #333;
      }

      #navbar a:hover {
      background-color: #ddd;
      color: black;
      }

      #navbar a.active {
      background-color: red;
      color: white;
      }

      #navbar .search-container {
      float: right;
      }

      #navbar input[type=text] {
      padding: 6px;
      margin-top: 8px;
      font-size: 17px;
      border: none;
      }

      #navbar .search-container button {
      float: right;
      padding: 6px 10px;
      margin-top: 8px;
      margin-right: 16px;
      background: #ddd;
      font-size: 17px;
      border: none;
      cursor: pointer;
      }

      #navbar .search-container button:hover {
      background: #ccc;
      }

      @media screen and (max-width: 600px) {
      #navbar .search-container {
      float: none;
      }
      #navbar a,
      .navbar input[type=text],
      .navbar .search-container button {
      float: none;
      display: block;
      text-align: left;
      width: 100%;
      margin: 0;
      padding: 14px;
      }
      #navbar input[type=text] {
      border: 1px solid #ccc;
      }
      }

      .content {
      padding: 16px;
      }

      .navbar a:hover,
      .dropdown:hover .dropbtn {
      background-color: #ddd;
      color: black;
      }

      .sticky {
      position: fixed;
      top: 0;
      width: 100%;
      overflow: visible !important;
      }

      .sticky+.content {
      padding-top: 60px;
      }

      .sticky .dropdown-content {
      top: 48px;
      }

      .subnav {
      float: left;
      overflow: hidden;
      }

      .subnav .subnavbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      margin: 0;
      }

      .navbar a:hover,
      .subnav:hover .subnavbtn {
      background-color: #ddd;
      color: #f2f2f2;
      }

      .subnav-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .subnav-content a {
      float: left;
      color: #f2f2f2;
      text-decoration: none;
      }

      .subnav-content a:hover {
      background-color: #ddd;
      }

      .subnav:hover .subnav-content {
      display: block;
      }

      .dropdown {
      float: left;
      overflow: hidden;
      }

      .dropdown .dropbtn {
      font-size: 16px;
      border: none;
      outline: none;
      color: #f2f2f2;
      padding: 14px 16px;
      background-color: inherit;
      font-family: inherit;
      /* Important for vertical
      align on mobile phones */
      margin: 0;
      /* Important for vertical align on mobile
      phones */
      }

      .dropdown-content {
      display: none;
      position: absolute;
      left: 0;
      background-color: #333;
      min-width: 100%;
      box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
      z-index: 1;
      }

      .dropdown-content a {
      float: none;
      color: #f2f2f2;
      padding: 12px 16px;
      text-decoration: none;
      display: block;
      text-align: left;
      }

      .dropdown-content a:hover {
      background-color: #ddd;
      color: black;
      }

      .dropdown:hover .dropdown-content {
      display: block;
      }

      <!DOCTYPE html>
      <html>

      <head>
      <meta name="viewport" content="width=device-width,
      initial-scale=1">
      <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
      awesome/4.7.0/css/font-awesome.min.css">
      </head>

      <body>
      <div id="navbar">
      <a class="active" href="#home">Home</a>
      <div class="subnav">
      <button class="subnavbtn">Books <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <div class="subnav">
      <div class="dropdown">
      <button class="dropbtn">Read
      <i class="fa fa-caret-down"></i>
      </button>
      <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <a href="#">Link 3</a>
      </div>
      </div>
      <a href="#team">PDF 1</a>
      <a href="#careers">PDF 2</a>
      </div>
      </div>
      </div>
      <div class="subnav">
      <button class="subnavbtn">Video <i class="fa fa-
      caret-down"></i></button>
      <div class="subnav-content">
      <a href="#bring">Watch</a>
      <a href="#deliver">Download</a>
      </div>
      </div>
      <a href="#contact">Contact</a>
      <div class="search-container">
      <form action="/action_page.php">
      <input type="text" placeholder="Search.." name="search">
      <button type="submit"><i class="fa fa-search"></i>
      </button>
      </form>
      </div>
      </div>
      <div style="padding:0 16px">
      <h3>Subnav/dropdown menu inside a Navigation Bar
      </h3>
      <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
      </div>
      </div>
      </div>
      <div class="content">
      </div>
      </div>
      <h3>Sticky Navigation Example</h3>
      <p>The navbar will stick to the top when you reach its scroll position.
      </p>
      <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
      efficiantur his ad. Eum no molestiae voluptatibus.</p>
      </div>
      /
      </body>

      </html>






      html css drop-down-menu sticky






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      edited Nov 5 at 2:13









      Obsidian Age

      26k72244




      26k72244










      asked Nov 5 at 2:09









      Antonio Maccagnan

      44




      44
























          1 Answer
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          You've set the .dropdown-content to be 48px from the top of it's containing block when it is a child of an element with the class .sticky this creates a 2px gap because it's containing element (.subnav-content) is only 46px in height. You can fix it by setting the .dropdown-content to be 100% from the top of it's containing block instead of at 48px:



          .sticky .dropdown-content {
          top: 100%;
          }





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>








          share|improve this answer





















          • Thanks for the solution and the explanation, it's goot to learn stuff.
            – Antonio Maccagnan
            2 days ago











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          You've set the .dropdown-content to be 48px from the top of it's containing block when it is a child of an element with the class .sticky this creates a 2px gap because it's containing element (.subnav-content) is only 46px in height. You can fix it by setting the .dropdown-content to be 100% from the top of it's containing block instead of at 48px:



          .sticky .dropdown-content {
          top: 100%;
          }





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>








          share|improve this answer





















          • Thanks for the solution and the explanation, it's goot to learn stuff.
            – Antonio Maccagnan
            2 days ago















          up vote
          0
          down vote



          accepted










          You've set the .dropdown-content to be 48px from the top of it's containing block when it is a child of an element with the class .sticky this creates a 2px gap because it's containing element (.subnav-content) is only 46px in height. You can fix it by setting the .dropdown-content to be 100% from the top of it's containing block instead of at 48px:



          .sticky .dropdown-content {
          top: 100%;
          }





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>








          share|improve this answer





















          • Thanks for the solution and the explanation, it's goot to learn stuff.
            – Antonio Maccagnan
            2 days ago













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          You've set the .dropdown-content to be 48px from the top of it's containing block when it is a child of an element with the class .sticky this creates a 2px gap because it's containing element (.subnav-content) is only 46px in height. You can fix it by setting the .dropdown-content to be 100% from the top of it's containing block instead of at 48px:



          .sticky .dropdown-content {
          top: 100%;
          }





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>








          share|improve this answer












          You've set the .dropdown-content to be 48px from the top of it's containing block when it is a child of an element with the class .sticky this creates a 2px gap because it's containing element (.subnav-content) is only 46px in height. You can fix it by setting the .dropdown-content to be 100% from the top of it's containing block instead of at 48px:



          .sticky .dropdown-content {
          top: 100%;
          }





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>








          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>





          window.onscroll = function() {
          myFunction()
          };
          var navbar = document.getElementById("navbar");
          var sticky = navbar.offsetTop;

          function myFunction() {
          if (window.pageYOffset >= sticky) {
          navbar.classList.add("sticky")
          } else {
          navbar.classList.remove("sticky");
          }
          }

          * {
          box-sizing: border-box;
          }

          body {
          margin: 0;
          }

          img {
          display: block;
          margin: 0 auto;
          }

          h2 {
          font-family: Times New Roman, serif;
          font-size: 17px;
          font-style: italic;
          color: black;
          background-color: white padding: 30px;
          text-align: center;
          }

          .navbar {
          overflow: hidden;
          background-color: #333;
          }

          .navbar a {
          float: left;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar {
          overflow: hidden;
          background-color: #333;
          }

          #navbar a {
          float: left;
          display: block;
          color: #f2f2f2;
          text-align: center;
          padding: 14px 16px;
          text-decoration: none;
          font-size: 16px;
          background-color: #333;
          }

          #navbar a:hover {
          background-color: #ddd;
          color: black;
          }

          #navbar a.active {
          background-color: red;
          color: white;
          }

          #navbar .search-container {
          float: right;
          }

          #navbar input[type=text] {
          padding: 6px;
          margin-top: 8px;
          font-size: 17px;
          border: none;
          }

          #navbar .search-container button {
          float: right;
          padding: 6px 10px;
          margin-top: 8px;
          margin-right: 16px;
          background: #ddd;
          font-size: 17px;
          border: none;
          cursor: pointer;
          }

          #navbar .search-container button:hover {
          background: #ccc;
          }

          @media screen and (max-width: 600px) {
          #navbar .search-container {
          float: none;
          }
          #navbar a,
          .navbar input[type=text],
          .navbar .search-container button {
          float: none;
          display: block;
          text-align: left;
          width: 100%;
          margin: 0;
          padding: 14px;
          }
          #navbar input[type=text] {
          border: 1px solid #ccc;
          }
          }

          .content {
          padding: 16px;
          }

          .navbar a:hover,
          .dropdown:hover .dropbtn {
          background-color: #ddd;
          color: black;
          }

          .sticky {
          position: fixed;
          top: 0;
          width: 100%;
          overflow: visible !important;
          }

          .sticky+.content {
          padding-top: 60px;
          }

          .sticky .dropdown-content {
          top: 100%;
          }

          .subnav {
          float: left;
          overflow: hidden;
          }

          .subnav .subnavbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          margin: 0;
          }

          .navbar a:hover,
          .subnav:hover .subnavbtn {
          background-color: #ddd;
          color: #f2f2f2;
          }

          .subnav-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .subnav-content a {
          float: left;
          color: #f2f2f2;
          text-decoration: none;
          }

          .subnav-content a:hover {
          background-color: #ddd;
          }

          .subnav:hover .subnav-content {
          display: block;
          }

          .dropdown {
          float: left;
          overflow: hidden;
          }

          .dropdown .dropbtn {
          font-size: 16px;
          border: none;
          outline: none;
          color: #f2f2f2;
          padding: 14px 16px;
          background-color: inherit;
          font-family: inherit;
          /* Important for vertical
          align on mobile phones */
          margin: 0;
          /* Important for vertical align on mobile
          phones */
          }

          .dropdown-content {
          display: none;
          position: absolute;
          left: 0;
          background-color: #333;
          min-width: 100%;
          box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
          z-index: 1;
          }

          .dropdown-content a {
          float: none;
          color: #f2f2f2;
          padding: 12px 16px;
          text-decoration: none;
          display: block;
          text-align: left;
          }

          .dropdown-content a:hover {
          background-color: #ddd;
          color: black;
          }

          .dropdown:hover .dropdown-content {
          display: block;
          }

          <!DOCTYPE html>
          <html>

          <head>
          <meta name="viewport" content="width=device-width,
          initial-scale=1">
          <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-
          awesome/4.7.0/css/font-awesome.min.css">
          </head>

          <body>
          <div id="navbar">
          <a class="active" href="#home">Home</a>
          <div class="subnav">
          <button class="subnavbtn">Books <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <div class="subnav">
          <div class="dropdown">
          <button class="dropbtn">Read
          <i class="fa fa-caret-down"></i>
          </button>
          <div class="dropdown-content">
          <a href="#">Link 1</a>
          <a href="#">Link 2</a>
          <a href="#">Link 3</a>
          </div>
          </div>
          <a href="#team">PDF 1</a>
          <a href="#careers">PDF 2</a>
          </div>
          </div>
          </div>
          <div class="subnav">
          <button class="subnavbtn">Video <i class="fa fa-
          caret-down"></i></button>
          <div class="subnav-content">
          <a href="#bring">Watch</a>
          <a href="#deliver">Download</a>
          </div>
          </div>
          <a href="#contact">Contact</a>
          <div class="search-container">
          <form action="/action_page.php">
          <input type="text" placeholder="Search.." name="search">
          <button type="submit"><i class="fa fa-search"></i>
          </button>
          </form>
          </div>
          </div>
          <div style="padding:0 16px">
          <h3>Subnav/dropdown menu inside a Navigation Bar
          </h3>
          <p>Hover over the "about", "services" or "partners" link to see the sub navigation menu.</p>
          </div>
          </div>
          </div>
          <div class="content">
          </div>
          </div>
          <h3>Sticky Navigation Example</h3>
          <p>The navbar will stick to the top when you reach its scroll position.
          </p>
          <p>Some text to enable scrolling.. Lorem ipsum dolor sit amet, illum definitiones no quo, maluisset concludaturque et eum, altera fabulas ut quo. Atqui causae gloriatur ius te, id agam omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint
          efficiantur his ad. Eum no molestiae voluptatibus.</p>
          </div>
          /
          </body>

          </html>






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          answered Nov 5 at 11:42









          Danny

          68118




          68118












          • Thanks for the solution and the explanation, it's goot to learn stuff.
            – Antonio Maccagnan
            2 days ago


















          • Thanks for the solution and the explanation, it's goot to learn stuff.
            – Antonio Maccagnan
            2 days ago
















          Thanks for the solution and the explanation, it's goot to learn stuff.
          – Antonio Maccagnan
          2 days ago




          Thanks for the solution and the explanation, it's goot to learn stuff.
          – Antonio Maccagnan
          2 days ago


















           

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