.dropdown {padding:0; margin:0}
.dropdown dd {position:absolute; overflow:hidden; width:182; display:none; opacity:0;float:left ;padding:0; margin:0}
.dropdown ul {width:182; border:1px solid #9ac1c9; list-style:none ;padding:0; margin:0}
.dropdown li {display:inline ;padding:0; margin:0}

.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; padding:5px; color:#333; text-decoration:none; background:#eaf0f2; width:180px}
.dropdown a:hover {background:#d9e1e4; color:#000}
.dropdown .underline {border-bottom:1px solid #b9d6dc}