*{padding:0; margin:0}
.dropdown {float:left; margin:0; padding:0; }
.dropdown dt {font-weight:bold; cursor:pointer;}
.dropdown dt:hover {}
.dropdown dd {position:absolute; overflow:hidden; width:auto; min-width:180px; display:none; background:#fff; z-index:200; opacity:0; margin-top:37px; margin-left:0; *margin-left:-10%;  }
.dropdown ul { list-style:none; border-top:none; border-left: solid 1px #2e4d6d; border-right: solid 1px #2e4d6d; border-bottom: solid 1px #2e4d6d; }
.dropdown li {display:inline;}
.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; color:#333; text-decoration:none;}
.dropdown ul li a{text-align:left; padding:8px; padding-right:8px;  background:url(../images/header.gif); background-repeat:repeat-x;}
.dropdown ul li a:hover{text-align:left; padding:8px; padding-right:8px;  background:url(../images/header_over.gif); background-repeat:repeat-x; color:#fff;}