body {
	margin: 10mm;
	background-color: #ccccff; 
	border:1px solid black;
}
article {
	margin: 5mm;
}
.centre {
	text-align: center;
}
.surligne {
	background-color: yellow;
}
.rouge {
	color: red;
}
.marge {
	margin-left: 5mm;
}