Simple Style Pure CSS3 Dropdown Menu

Simple Style yet amazing dropdown menu in pure CSS3. This code does not uses child selector >, although that might be prefered when there are multiple levels. Nice touch of CSS3 box-shadow, transition and text-shadow to achieve better user interface and interaction.


HTML

<ul><li>Home</li>
  <li>About</li>
  <li>
    Portfolio
    <ul>
      <li>Web Design</li>
      <li>Web Development</li>
      <li>Illustrations</li>
    </ul>
  </li>
  <li>Blog</li>
  <li>Contact</li>
</ul>

CSS

body {
  font-family: 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 13px;
  text-align: center;
}

ul {
  text-align: left;
  display: inline;
  margin: 0;
  padding: 15px 4px 17px 0;
  list-style: none;
  -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
  -moz-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
}
ul li {
  font: bold 12px/18px sans-serif;
  display: inline-block;
  margin-right: -4px;
  position: relative;
  padding: 15px 20px;
  background: #fff;
  cursor: pointer;
  -webkit-transition: all 0.2s;
  -moz-transition: all 0.2s;
  -ms-transition: all 0.2s;
  -o-transition: all 0.2s;
  transition: all 0.2s;
}
ul li:hover {
  background: #555;
  color: #fff;
}
ul li ul {
  padding: 0;
  position: absolute;
  top: 48px;
  left: 0;
  width: 150px;
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
  display: none;
  opacity: 0;
  visibility: hidden;
  -webkit-transiton: opacity 0.2s;
  -moz-transition: opacity 0.2s;
  -ms-transition: opacity 0.2s;
  -o-transition: opacity 0.2s;
  -transition: opacity 0.2s;
}
ul li ul li {
  background: #555;
  display: block;
  color: #fff;
  text-shadow: 0 -1px 0 #000;
}
ul li ul li:hover { background: #666; }
ul li:hover ul {
  display: block;
  opacity: 1;
  visibility: visible;
}