body {font:12px Verdana, Arial, Helvetica}
* {padding:0; margin:0}
.dropdown {
	float:left;
	padding-right:2px
}
.dropdown dt {
	width:143px;
	border:2px 
	solid #3333ff; 
	padding:0px; 
	text-align:center; 
	cursor:pointer; 
	background:url()
}
.dropdown dt:hover {
	background:url()
}
.dropdown dd {
	position:absolute; 
	overflow:hidden; 
	width:147px; 
	display:none; 
	background:#3333ff; 
	z-index:200; 
	opacity:0
}
.dropdown ul {
	width:143px; 
	border:2px solid #3333ff; 
	list-style:none; 
	border-top:none
}
.dropdown li {
	display:inline
}
.dropdown a, 
.dropdown a:active, 
.dropdown a:visited {
	display:block; 
	padding:8px; 
	color:#ffffff; 
	text-decoration:none; 
	line-height: 1.2em; 
	background:#3333ff; 
	width:125px; 
}
.dropdown a:hover {
	background:#ffffff; 
	color:#3333ff;
}
.dropdown .underline {
	border-bottom:1px solid #ffffff;
}


<!--absolute-->