body {
	font-size: 14px;
	font-family: Arial;
	color: white;
	padding: 0px;
	margin: 0px;
	background-color: black;
}

#mainseite {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	background-image: url(tanzen.jpg);
	background-position: bottom left;
	background-repeat: no-repeat;
}

#zentriert {
	width: 600px;
	margin-left: auto;
	margin-right: auto;
}