#wapper {
	width: 100%;
	height: 100%;
	display: block;
}

#wartung {
	width: 260px;
	height: 255px;
	margin-left: -130px;
	margin-top: -150px;
	position: absolute;
	display: block;
	top: 50%;
	left: 50%;
	background: #fff url(wartung.jpg) no-repeat;
}