.conteneurindex {
position:absolute;
left: 50%; 
top: 50%;
width: 874px;
height: 512px;
margin-top: -256px;
margin-left: -437px;
border: 0px solid #000000;
}
.conteneur {
position:absolute;
left: 50%; 
top: 50%;
width: 1000px;
height: 578px;
margin-top: -289px;
margin-left: -500px;
border: 0px solid #000000;
}
.index {

	font-family: Arial, Helvetica, sans-serif;
	font-size: 22px;
	color: #2A3C83;
	text-decoration: none;
	font-weight: bold;
}