* {
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

html {
	width: 100%;
	height: 100%;
}

body {
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	overflow: hidden;
}

main {
	position: relative;
	text-align: center;
}

canvas {
	width: 100%;
	height: 100%;
	background-color: #000;
	margin: auto;
}