html {
	overflow: hidden;
	touch-action: none;
	content-zooming: none;
	user-select: none;
}
body {
	position: absolute;
	margin: 0px;
	padding: 0px;
	background: #fff; 
	width: 100%;
	height: 100%;
}
canvas {
	position: relative;
	left: 0;
	top: 0px;
	width: 100%;
	height: 100%;
	background: #fff; 
}