#global {
position:relative;
margin-left:auto;
margin-right:auto;
width:938px;
background-color:#CCC;
}

.centrer {
margin-left:auto;
margin-right:auto;
width:950px;
text-align:left;
}

body {
text-align:center;
font-family:Arial, Helvetica, sans-serif;
margin:0;
padding:0;
}