Creating a Dynamic Navigation Bar with HTML and CSS

I've been exploring the code on w3schools.com, and while there are some great examples, I'm struggling to understand it all. Unfortunately, there aren't any instructions on customizing the code for a third level of menus. Can someone simplify this code for me so that I can easily add multiple levels of menus whenever needed?

<!doctype html>
<html>
<head>
<meta charset="utf-8" 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">
<title>Title</title>
<style>
body {
  font-family: Arial, Helvetica, sans-serif;
}

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

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

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

.dropdown .dropbtn {
  font-size: 16px;  
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: red;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

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

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

.dropdown:hover .dropdown-content {
  display: block;
}
</style>
</head>
<body>

<div class="navbar">
  <a href="#home">Home</a>
  <a href="#news">News</a>
  <div class="dropdown">
    <button class="dropbtn">Dropdown 
      <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> 
</div>

<h3>Dropdown Menu inside a Navigation Bar</h3>
<p>Hover over the "Dropdown" link to see the dropdown menu.</p>



</body>
</html>

I need help understanding how to specify the overall width of the navbar in this code. When using someone else's code, the nav bar was stuck at only 150px even after changing the values. I must be missing something about where this specification is set.

Update: Thanks to one of the answers, I managed to add the tertiary menu and adjust its positioning. However, now I'm facing an issue where the dropdown menu under "Link 3" extends beyond what it should. How do I fix this? Here's my updated code:

<!doctype html>
<html>
<head>
<meta charset="utf-8" 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">
<title>Title</title>
<style>
body {
  font-family: Arial, Helvetica, sans-serif;
}

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

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

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

.dropdown .dropbtn {
  font-size: 16px;  
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
  width: 100%; /*red background color width*/
  text-align: start; /*text inside in red background color*/
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: red;
}

.dropdown-content-sub {
  display: none;
  position: relative;
  top: -46px;
  right: -300px;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

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

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

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

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

</style>
</head>
<body>
        
<div class="navbar">
  <a href="#home">Home</a>
  <a href="#news">News</a>
  <div class="dropdown">
    <button class="dropbtn">Dropdown 
      <i class="fa fa-caret-down"></i>
    </button>
    <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <div class="dropdown-sub">
        <button class="dropbtn">Link 3 
          <i class="fa fa-caret-right"></i>
        </button>
        <div class="dropdown-content-sub">
           <a href="#">Link 4</a>
           <a href="#">Link 5</a>
           <a href="#">Link 6</a>
       </div>
    </div> 
  </div>
</div>

<h3>Dropdown Menu inside a Navigation Bar</h3>
<p>Hover over the "Dropdown" link to see the dropdown menu.</p>



</body>
</html>

Final Update: It turns out that changing the position of the third tier from absolute to relative caused unexpected issues. Reverting back to the original solved the problem, and everything now functions smoothly. :) Adjusting the "top" position after that was straightforward. Now, with the links properly placed in each menu item, I'm ready to go! :) Thank you for the assistance!

htmlcssnavigationhoverdropdown

Answer №1

Check out the latest changes in the original post. Huge shoutout to @JannesCarpentier and an anonymous user for their assistance! Below is the modified code from w3schools.com for creating a 3-tiered hover navbar.

<!doctype html>
<html>
<head>
<meta charset="utf-8" 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">
<title>Title</title>
<style>
body {
  font-family: Arial, Helvetica, sans-serif;
}

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

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

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

.dropdown .dropbtn {
  font-size: 16px;  
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
  width: 100%; /*red background color width*/
  text-align: start; /*text inside in red background color*/
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: red;
}

.dropdown-content-sub {
  display: none;
  position: absolute;
  top: 85px;
  right: -300px;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

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

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

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

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

</style>
</head>
<body>
        
<div class="navbar">
  <a href="#home">Home</a>
  <a href="#news">News</a>
  <div class="dropdown">
    <button class="dropbtn">Dropdown 
      <i class="fa fa-caret-down"></i>
    </button>
    <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <div class="dropdown-sub">
    <button class="dropbtn">Link 3 
      <i class="fa fa-caret-right"></i>
    </button>
    <div class="dropdown-content-sub">
      <a href="#">Link 4</a>
      <a href="#">Link 5</a>
      <a href="#">Link 6</a>
    </div>
  </div> 
    </div>
  </div> 
</div>

<h3>Dropdown Menu inside a Navigation Bar</h3>
<p>Hover over the "Dropdown" link to see the dropdown menu.</p>



</body>
</html>


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

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

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

.dropdown .dropbtn {
  font-size: 16px;
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
  width: 100%; /*red background color width*/
  text-align: start; /*text inside in red background color*/
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: red;
}

.dropdown-content-sub {
  display: none;
  position: absolute;
  top: 85px;
  right: -300px;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 300px; /*block width*/
}

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

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

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

.dropdown-sub:hover .dropdown-content-sub {
  display: block;
}
<div class="navbar">
  <a href="#home">Home</a>
  <a href="#news">News</a>
  <div class="dropdown">
    <button class="dropbtn">Dropdown 
      <i class="fa fa-caret-down"></i>
    </button>
    <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <div class="dropdown-sub">
        <button class="dropbtn">Link 3 
          <i class="fa fa-caret-right"></i>
        </button>
        <div class="dropdown-content-sub">
          <a href="#">Link 4</a>
          <a href="#">Link 5</a>
          <a href="#">Link 6</a>
        </div>
      </div>
    </div>
  </div>
</div>

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