body {
	background-color: #111;
	overflow: hidden;
}
canvas {
	position: absolute;
	top: calc( 50% - 200px );
	left: calc( 50% - 200px );
}
/* temporary */
/*
img {
	position: absolute;
	bottom: -6px;
	right: -12px;
}
body {
	color: #eee;
}
.debug-canvas {
	position: absolute;
	top: auto;
	left: auto;
	bottom: 0;
	right: 0;
}*/