#bloc1{
	width:830px;
	height:365px;
	position:absolute;
	top:0px;
	left:0px;
	overflow:hidden !important;
}

#bloc2{
	width:340px;
	height:130px;
	position:absolute;
	top:385px;
	left:0px;
	overflow:hidden !important;
}

#bloc3{
	width:470px;
	height:145px;
	position:absolute;
	top:370px;
	left:360px;
	overflow:hidden !important;
}