.dropdown {float:left; font-size: 1.4em;}
.dropdown dt {width:124px; font-weight:bold; cursor:pointer;}
.dropdown dd {position:absolute; overflow:hidden; width:124px; display:none; background:#fff; z-index:200; opacity:0}
.dropdown ul {width:124px;}
.dropdown li {display:inline}
.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; color:#333; text-decoration:none; width:124px}
.dropdown a:hover {background:#d9e1e4; color:#000; text-decoration: underline;}
.dropdown .menuInformations:hover {background: url(../images/common/bt_informationsOver.jpg) 0 0 no-repeat;}
.dropdown .underline {border-bottom:1px solid #b9d6dc; padding: 5px;}