body {
	background-image:url(../images/bg.jpg);
	background-repeat:repeat-x;
	background-color: #4D77A7;
	margin-left: auto;
	margin-top: auto;
	margin-right: auto;
	margin-bottom: auto;
}

.center {
	position:absolute;
	left: 50%; 
	top: 50%;
	width: 900px;
	height: 600px;
	margin-left: -450px;
	margin-top: -300px;
	border:1px solid #476F9B;
}