body, html{
	margin:0px;
	padding:0px;
	height:100%; /* this is the key! */
	font-family:verdana;
	font-size:10px;
}

a:hover, a, a:visited {color:#000000;}

#log {
	position:relative;
	padding:0;
	width:100%;
	height:100%; /* works only if parent container is assigned a height value */
	display: table;
}

#form {
	width:400px;
	background-color:#ffffff;
	#position: relative; 
	#top: -50%;
	text-align:center;
}

	
#subcont {
	#position: absolute;
	#top: 50%;
	display: table-cell;
	vertical-align: middle;
	width:100%;
}