html, body {
	margin: 0 auto;
	height: 100%;
	overflow: hidden;
}
body {
	background: #FFFFFF;
	font: 86% Arial, "Helvetica Neue", sans-serif;
	margin: 0;                
}

div.teksten {
	height: auto;
	width: 500px;
}

div.interface {
	width: 300px;
	height: auto;
}