/* CSS Document */
body{
	text-align:center;
	color: #2b3850;
}
#contenido{
	margin-top: 0px;
    margin-left: -10px;
    position: absolute;
    top: 20%;
   	left: 20%;    
}
<script type="text/javascript">
if (top != self) top.location.href = location.href;
</script>