.center{
	padding:0;
	margin:0;
	position:relative;
	text-align:center;
}
.canvas{
	width:100%;
	height:100%;
	margin:0 auto;
	padding:0;
	text-align:left;
	position:absolute;
	overflow:hidden;
	
}
.canvas iframe.content{
	position:absolute;
	width:100%;
	height:100%;
}