#conteneur {
	background-color: #CC9966;
	width:771px;
}
.article {
	margin-top:10px;
	position: relative;
	width: 330px;
	display:block;
	visibility:visible;
}
.article img {
	border: 3px #000000 solid;
	margin: 0 0 10px 0;
}
.articleInvisible {
	display:none;
	visibility:hidden;
}
.chapitreInvisible {
	display:none;
	visibility:hidden;
}
.chapitre {
	display:block;
	visibility:visible;
}