@media only screen and (max-width: 640px) {
	#gauche, #gauche.width200{float:none;/*width:100%*/;background:#FFF;background-image:none}
	#centre, #centre.centreFull, #centre.width736{width:98%; float:none;background:#FFF;background-image:none}
	img{max-width:100%;height:auto;}
}