.dropdown {float:left;}
.dropdown dt {cursor:pointer;}
.dropdown dd {position:absolute; overflow:hidden; width:120px; display:none; z-index:200; opacity:0}
.dropdown ul {width:120px; list-style:none; border-top:none}
.dropdown li {display:inline;}
.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; color:#333; text-decoration:none;}
.dropdown .underline { border-bottom:#999999 solid 1px;}