#conteneur_ctr {
	position:relative;
	margin-left:40px;
	margin-top:6px;
	width:836px;
	height:500px;
	/*background-color: #99FF99;*/
	}

#content_gch {
	position:relative;
	margin-left:6px;
	margin-top:0px;
	margin-bottom:10px;
	width:170px;
	height:auto;
	/*background-color: #99FF22;*/
	float: left;
	}
	
#content_drt {
	position:relative;
	margin-left:16px;
	margin-top:10px;
	margin-bottom:10px;
	width:640px;
	height:auto;
	/*background-color: #666666;*/
	float: left;
	}