CSS3 dropdown menu

CSS3 drop-down menu, without any additional jQuery or javascript or images. To create this add below html structure in your page body part:

HTML:

<ul class="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>

and in your style page add below css property:

CSS:

#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;
}

#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;
}