Creating a Responsive Navbar

A usable navigation bar is an essential part of any website. By using CSS Flexbox and media queries, you can create a responsive navbar that adapts seamlessly from desktop to mobile.

On large screens, navigation links are usually displayed in a horizontal row across the top of the page. On mobile screens, however, there isn't enough horizontal space to display all the links side-by-side. If you have a small number of links, one common solution is to stack the links vertically on smaller devices.

Building the HTML Structure

First, set up your HTML using semantic tags. We'll use a nav element as the outer container, hold our "brand" or "logo" in a standard link, and place our navigation links inside an unordered list (ul) made up of list items (li):

Styling the Desktop View

To place the logo on the left and the links on the right, we apply display: flex; and justify-content: space-between; to the main container. We also use flexbox on the ul class (.nav-links) to align the links horizontally:

Styling the Mobile View

To make it responsive, we use a CSS media query. When the screen drops below a certain width (like 600px), we change the flex-direction of both the main navbar container and the list of links to column. This forces everything to stack vertically:

Full Working Example

Below is the complete HTML and CSS for a responsive navbar. Notice how some borders are added in the mobile layout to clearly separate the stacked links:

<!DOCTYPE html>
<html>
<head>
<title>Responsive Navbar Example</title>
<style>
  body {
    font-family: sans-serif;
    margin: 0;
  }
  .navbar {
    background-color: #2c3e50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
  }
  .navbar-brand {
    color: white;
    font-size: 1.5em;
    font-weight: bold;
    text-decoration: none;
  }
  .nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 15px;
  }
  .nav-links li a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
  }
  .nav-links li a:hover {
    background-color: #34495e;
    border-radius: 4px;
  }
  
  /* Mobile Layout */
  @media (max-width: 600px) {
    .navbar {
      flex-direction: column;
      align-items: flex-start;
      padding: 0;
    }
    .navbar-brand {
      padding: 15px 20px;
    }
    .nav-links {
      flex-direction: column;
      width: 100%;
      gap: 0; /* Remove the gap so items touch */
    }
    .nav-links li {
      width: 100%;
    }
    .nav-links li a {
      padding: 15px 20px;
      border-top: 1px solid #3b536b; /* Clear separation for stacked links */
      border-radius: 0; /* Remove rounded corners */
    }
  }
</style>
</head>
<body>

<nav class="navbar">
  <a href="#" class="navbar-brand">Logo</a>
  <ul class="nav-links">
    <li><a href="#">Home</a></li>
    <li><a href="#">Products</a></li>
    <li><a href="#">About Us</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</nav>

<p style="padding: 20px;">Try resizing your browser window! The navbar will switch from a horizontal row to a vertical stacked list on smaller screens.</p>

</body>
</html>

View Output Full Screen Preview

Tip: Taking it a Step Further

While stacking the links is a great start, a very long list of links can still overwhelm a small mobile screen. You can solve this by hiding the stacked links behind a clickable button. For a complete guide on this technique, see How to Create a Hamburger Menu.