body{
	background-image: url(.jpg);
	margin: 0;
	padding: 0;
	background-color: #000000;
	color: #000000;
	font-family: Verdana, Arial, sans-serif;
}
div#rahmen{
	width: 500px;
	height: 300px;
	position: absolute;
	left: 50%;
	margin-left: -250px;
	top: 50%;
	margin-top: -150px;
	border: 2px solid #CCCCCC;
}