#dropline {list-style:none; height:91px; width:595px; margin:0;padding:0; background:url(../img-gen/bandeau-nav.gif)  bottom no-repeat;}
#dropline li {margin:0 auto; height:21px; width: auto; float:left; padding:inherit; }
#dropline li a {margin:0 auto; display:block; height:68px; float:left;text-align:center; width:85px;}
#dropline li:hover > a {height:67px; overflow:hidden;margin:0 auto;}

#dropline ul {margin:0 auto; list-style:none; position: absolute; height:21px; width:216px; z-index:10; padding:inherit; background-color:#00FF00; bottom:-100px;}
#dropline :hover ul { margin:0 auto; color:#333333; bottom:100px;}