body{
	margin:0;
}

canvas {
	width: 100%; 
	height: 100%; 
	background: rgb(255, 255, 255);
  display: block; /* fix necessary to remove space at bottom of canvas */
}

#main {
	background: rgb(255, 255, 255);
	width: 100%;
	height: 100%;
	position: absolute;
}