.contenu_st{
	background:url(../images/fond_contenu.gif) repeat-y;
}

.col_gauche{
	width:234px;
	float:left;
	font-size:13px;
	padding:0px 7px 0 7px;
}

.col_centrale{
	float:left; 
	width:489px;
	margin-left:7px;
	padding:0px 7px 0 7px;
}