html,body{
    height:				100%;
	width:				100%;
    text-align:			center;
    margin:				0;
    padding:			0;
}

table.centertable{
	width:				100%;
	height:				100%;
}

table.centertable td{
	width:				100%;
	height:				100%;
	text-align:			center;
	vertical-align:		middle;
}