#dossiers {
	position: relative;
	width: 600px;
	top: 10px;
	margin-right: auto;
	margin-left: auto;
	margin-top: 10px;
}
#publication {
	position: relative;
	right: auto;
	left: auto;
	width: 600px;
	margin-top: 0px;
	margin-right: auto;
	margin-left: auto;
}