CSS Layout How to - Create Responsive navigation dropdown mobile

Question

We would like to know how to create Responsive navigation dropdown mobile.

Answer


<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
body {<!--from  w  ww .  j av a 2  s.  com-->
  margin: 0;
  line-height: 1em;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: hidden;;
  background-color: #666;
}

ul .btn {
  display: none;
  cursor: pointer;
}

ul li {
  float: left;
}

ul li a {
  display: block;
  padding: 15px 0 15px 20px;
  text-decoration: none;
  color: #bbb;
}

ul li a:hover {
  color: #fff;
}

@media ( max-width : 30em) {
  ul li {
    float: none;
  }
  ul .btn {
    display: block;
  }
  ul .menu li a {
    padding: 0px 20px 10px 20px;
  }
  ul .menu {
    display: none;
  }
  ul li:hover .menu {
    display: block;
  }
}
</style>
</head>
<body>
  <ul class="nav">
    <li><a class="btn">&#9776;</a>
      <ul class="menu">
        <li><a href="">Home</a></li>
        <li><a href="">Portfolio</a></li>
        <li><a href="">Contact</a></li>
      </ul></li>
  </ul>
</body>
</html>

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