html, body {
padding:0;
margin:0;
width:100%;
height:100%;
overflow:visible;

}

#kopf{
	position:absolute;
	margin-top: 25px;
	padding: 0;
	border: 0;
	width: 990px;
	height: 60px;
	left: 50%;
	margin-left: -495px;
	z-index: 1000;
}

#slidercontainer1 {
	overflow:hidden;
	width:450px;
	height:250px;
	position:absolute;
	padding-top: 15%;
	left: 50%;
	margin-left: -475px;
}

#slidercontainer2 {
	overflow:hidden;
	width:450px;
	height:250px;
	position:absolute;
	padding-top: 15%;
	left: 50%;
	margin-left: 20px;
}

#slidercontainer3 {
	overflow:hidden;
	width:450px;
	height:250px;
	position:absolute;
	padding-top: 15%;
	margin-top: 250px;
	left: 50%;
	margin-left: -475px;
}

#slidercontainer4 {
	overflow:hidden;
	width:450px;
	height:250px;
	position:absolute;
	padding-top: 15%;
	margin-top: 250px;
	left: 50%;
	margin-left: 20px;
}