#conteneur {
	position:fixed !important;
	position:absolute;
	top:50%;left:50%;
	margin-top:-300px;
	margin-left:-400px;
	width:784px;
	height:576px;
	background-image: url(img/design/backMain_en.jpg);
	background-repeat:no-repeat;
	border:2px #633902 solid;
}