#menu {
width: 97%;
background: transparent;
float: left;
margin-left:10px;
}
#menu ul {
list-style: none;
margin: 0;
padding: 0;
float: left;
}
#menu a, #menu h2 {
font: bold 11px/16px arial, helvetica, sans-serif;
display: block;
border-width: 0px;
border-style: solid;
border-color: #ccc #888 #555 #bbb;
margin: 0;
padding: 2px 11px;
}

#menu h2 {
color: #4C94B7;
background: transparent;
}

#menu a {
color: #4c94d0;
background: #ebf8ff;
text-decoration: none;
}

#menu a:hover {
color: #a00;
background: #ebf8ff;
}
#menu li {position: relative;}

#menu ul ul {

position: absolute;
z-index: 500;
width: 100%;

}
#menu ul ul li{border-bottom:1px solid #4ca6dc;}

div#menu ul ul
{display: none; width:150px;}

div#menu ul li:hover ul
{display: block;}
#menu ul ul a:hover { background-color:#62baea; color:#fff}

<!--[if IE6]>
body {
behavior: url(csshover.htc);
font-size: 100%;
}

#menu ul li {float: left; width: 100%;}
#menu ul li a {height: 1%;} 

#menu a, #menu h2 {
font: bold 13px/1.4em Arial, Helvetica, sans-serif;
}
<![endif]-->