.dropdown dt {width:150px;}
.dropdown dd {position:absolute; overflow:hidden; width:150px; display:none; background:#fff; z-index:200; opacity:0;}
.dropdown ul {width:150px; list-style:none; border-top:none;}
.dropdown li {display:inline;}
.dropdown li a, .dropdown li a:active, .dropdown li a:visited {color:#333; display:block;text-decoration:none; width:150px; height:37px; line-height:37px; margin:0;text-align:center;font-size:12px;background:url(../img/bg1.gif) 0 0 no-repeat;}
.dropdown li a:hover {background:url(../img/bg2.gif) 0 0 no-repeat; color:#fff;}
.dropdown .underline {border-bottom:1px solid #b9d6dc}