body{
    background: url(../images/charleville.jpg) no-repeat center center fixed;
    background-size: cover;
	}
#contenu{
		width:400px;margin-left:auto;margin-right:auto;margin-top:200px;text-align:center;
		background-color:#66ccff;font-family:arial;padding:10px;
		font-size:14px;border:3px solid black;-moz-border-radius: 5px;-webkit-border-radius: 5px;
		}