How To Create A Hamburger Menu Javascript Example

<!DOCTYPE html>
<html>
<head>
<title>JavaScript Hamburger Menu Example</title>
<style>
  body {
    font-family: sans-serif;
    margin: 0;
  }
  .navbar {
    background-color: #4a148c;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    position: relative;
  }
  .navbar-brand {
    color: white;
    font-size: 1.5em;
    font-weight: bold;
    text-decoration: none;
  }
  
  /* The visual hamburger button (hidden on desktop) */
  .menu-icon {
    display: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
  }

.nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
  }
  .nav-links li a {
    color: white;
    text-decoration: none;
    padding: 10px;
    display: block;
  }

/* Mobile Layout */
  @media (max-width: 600px) {
    .menu-icon {
      display: block; /* Show the hamburger */
    }
    .nav-links {
      display: none; /* Hide the links by default */
      flex-direction: column;
      position: absolute;
      top: 100%;
      left: 0;
      width: 100%;
      background-color: #380b6b;
      gap: 0;
    }
    .nav-links li a {
      padding: 15px 20px;
      border-top: 1px solid #4a148c;
    }
    
    /* JavaScript will add this class to the nav-links ul when clicked */
    .nav-links.active {
      display: flex;
    }
  }
</style>
</head>
<body>

<ul class="nav-links" id="nav-menu">
    <li><a href="#">Home</a></li>
    <li><a href="#">Products</a></li>
    <li><a href="#">Pricing</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</nav>

<div style="padding: 20px;">
  <p>Resize your browser window so it is narrower than 600px. Click the hamburger icon to execute the JavaScript function that toggles the "active" CSS class on the menu.</p>
</div>

// Add click event listener to the button
  menuBtn.addEventListener('click', function() {
    // Toggle the 'active' class on the menu
    navMenu.classList.toggle('active');
  });
</script>

</body>
</html>