#conteneur {
	position: relative;
	margin-left: auto;
	margin-right: auto;
	width: 900px;
	height: 550px;
	border: 0px solid #000;
	background-repeat: no-repeat;
	margin-top: auto;
	margin-bottom: auto;
	left: auto;
	top: auto;
	right: auto;
	bottom: auto;
	clip: rect(auto,auto,auto,auto);
	background-color: #FFFFFF;
     }