body {
	position: absolute;
	top: 0px;
	left: 0px;
	bottom: 0px;
	right: 0px;
	background-color: #222;
	overflow: hidden;
}
canvas {
	position: absolute;
	width: 800px;
	height: 600px;
	left: 50%;
	top: 50%;
	margin-left: -400px;
	margin-top: -300px;
	background-color: #000;
	overflow: auto;
}
#divDebug {
	display: none;
	position: absolute;
	top: 0px;
	left: 0px;
	width: 100px;
	height: 100%;
	background-color: #fff;
	color: #111;
}
#divControls {
	position: absolute;
	width: 200px;
	height: 20px;
	margin-left: -100px;
	left: 50%;
	top: 2px;
	background-color: #eee;
	color: #111;
	
}
#divControls span{
	cursor: pointer;
}