#top{width:928px; height:100%; z-index:0; position:absolute; top:0px; left:0px; background-image:url(../image/degradfond.png); background-position:center top; background-repeat:no-repeat; background-color:#054060; text-align: center; left: 50%; margin-left: -463px;}
#top2{width:100%; height:0.3em; z-index:0; position:absolute; top:0px; background-color:#000000; left:0px;}
#blanc{width:780px; height:100%; z-index:0; position:absolute; top:0px; left:0px;background-color:#FFFFFF; text-align: center; left: 50%; margin-left: -390px;}