* {
	margin: 0;
	padding: 0;
}

html {
	height: 100%;
	display: table;
	width: 100%;
}

body {
	font-family: "Calibri","Arial",sans-serif;
	font-size: 16px;
	display: table-cell; 
	vertical-align: middle;
	background-color: #333;
}

.zentriert {
	text-align: center;
	vertical-align: middle;
}

#wrap{
	width:240px;
	margin:0 auto;
}

#middlediv{
	display:table-cell;
	vertical-align:middle;
}