body {margin:25px; font:12px Arial;}
* {padding:0; margin:0}
.dropdown {float:left; padding-right:5px;}
.dropdown dt {background-color:#ffff01; width:163px; border-bottom:2px solid #FFFFFF; padding:8px; font-weight:bold; cursor:pointer;}
.dropdown dt:hover {background:url(images/header_over.gif); border-bottom:2px solid #FF0000;}
.dropdown dd {position:absolute; overflow:hidden; width:208px; display:none; background:#fff; z-index:200; opacity:0}
.dropdown ul {width:204px; border:2px solid #FFFFFF; list-style:none; border-top:none}
.dropdown li {display:inline}
.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; padding:5px; text-decoration:none; background:#FFFFFF;}
.dropdown a:hover {background:transparent; color:#000; border-bottom:1px solid #ff0000;}
.dropdown .underline {border-bottom:1px solid #000000;}