<ul id="menu">
  <li><a href="#">Home</a></li>
  <li>
   <a href="#">Categories</a>
   <ul>
    <li><a href="#">CSS</a></li>
    <li><a href="#">Graphic design</a></li>
    <li><a href="#">Development tools</a></li>
    <li><a href="#">Web design</a></li>
   </ul>
  </li>
  <li><a href="#">Work</a></li>
  <li><a href="#">About</a></li>
  <li><a href="#">Contact</a></li>
</ul>

/* Main */
#menu
{
  width: 100%;
  margin: 0;
  padding: 10px 0 0 0;
  list-style: none;
  background: #111;
  background: -moz-linear-gradient(#444, #111);
     background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));
  background: -webkit-linear-gradient(#444, #111);
  background: -o-linear-gradient(#444, #111);
  background: -ms-linear-gradient(#444, #111);
  background: linear-gradient(#444, #111);
  -moz-border-radius: 50px;
  border-radius: 50px;
  -moz-box-shadow: 0 2px 1px #9c9c9c;
  -webkit-box-shadow: 0 2px 1px #9c9c9c;
  box-shadow: 0 2px 1px #9c9c9c;
}

#menu li
{
  float: left;
  padding: 0 0 10px 0;
  position: relative;
}

#menu a
{
  float: left;
  height: 25px;
  padding: 0 25px;
  color: #999;
  text-transform: uppercase;
  font: bold 12px/25px Arial, Helvetica;
  text-decoration: none;
  text-shadow: 0 1px 0 #000;
}

#menu li:hover > a
{
  color: #fafafa;
}

*html #menu li a:hover /* IE6 */
{
  color: #fafafa;
}

#menu li:hover > ul
{
  display: block;
}

/* Sub-menu */

#menu ul
{
     list-style: none;
     margin: 0;
     padding: 0;
     display: none;
     position: absolute;
     top: 35px;
     left: 0;
     z-index: 99999;
     background: #444;
     background: -moz-linear-gradient(#444, #111);
     background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #111),color-stop(1, #444));
     background: -webkit-linear-gradient(#444, #111);
     background: -o-linear-gradient(#444, #111);
     background: -ms-linear-gradient(#444, #111);
     background: linear-gradient(#444, #111);
     -moz-border-radius: 5px;
     border-radius: 5px;
}

#menu ul li
{
     float: none;
     margin: 0;
     padding: 0;
     display: block;
     -moz-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
     -webkit-box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
     box-shadow: 0 1px 0 #111111, 0 2px 0 #777777;
}

#menu ul li:last-child
{
     -moz-box-shadow: none;
     -webkit-box-shadow: none;
     box-shadow: none;
}

#menu ul a
{
     padding: 10px;
  height: auto;
     line-height: 1;
     display: block;
     white-space: nowrap;
     float: none;
  text-transform: none;
}

*html #menu ul a /* IE6 */
{
  height: 10px;
  width: 150px;
}

*:first-child+html #menu ul a /* IE7 */
{
  height: 10px;
  width: 150px;
}

#menu ul a:hover
{
     background: #0186ba;
  background: -moz-linear-gradient(#04acec,  #0186ba);
  background: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba));
  background: -webkit-linear-gradient(#04acec,  #0186ba);
  background: -o-linear-gradient(#04acec,  #0186ba);
  background: -ms-linear-gradient(#04acec,  #0186ba);
  background: linear-gradient(#04acec,  #0186ba);
}

#menu ul li:first-child a
{
     -moz-border-radius: 5px 5px 0 0;
     border-radius: 5px 5px 0 0;
}

#menu ul li:first-child a:after
{
     content: '';
     position: absolute;
     left: 30px;
     top: -8px;
     width: 0;
     height: 0;
     border-left: 5px solid transparent;
     border-right: 5px solid transparent;
     border-bottom: 8px solid #444;
}

#menu ul li:first-child a:hover:after
{
     border-bottom-color: #04acec;
}

#menu ul li:last-child a
{
     -moz-border-radius: 0 0 5px 5px;
     border-radius: 0 0 5px 5px;
}

/* Clear floated elements */
#menu:after
{
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}

* html #menu             { zoom: 1; } /* IE6 */
*:first-child+html #menu { zoom: 1; } /* IE7 */