body, html {
	height:100%;
	background-color: black;
}

#canvas {
    position:absolute;
    width:800;
    height:600;


	left:0; right:0;
	top:0; bottom:0;
	margin:auto;

	max-width:100%;
	max-height:100%;
	overflow:auto;

	border: 3px solid #444444;
}