.col_cadre { 
	width:626px;
	height:auto;
}

.col_gauche_320_290, .col_droite_320_290 { 
	float:left;
	vertical-align:top;
}

.col_gauche_320_290 { 
	width:320px;
}

.col_droite_320_290 { 
	margin-left:16px;
	width:290px;
}