.centrage {
	width: 800px;
	margin-right: auto;
	margin-left: auto;
}
.menu_gauche {
	font-family: Geneva, Arial, Helvetica, sans-serif;
	font-size: 0.8em;
	background-image:  url("/images/index/pages_sofiainformatique_07.jpg");
}
.blabla {
	background-image:  url("/images/index/pages_sofiainformatique_08.jpg");
	font-family: Geneva, Arial, Helvetica, sans-serif;
	font-size: 0.8em;
}