* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	min-height: 100vh;
	overflow: hidden;

	background: repeating-radial-gradient(
		circle at center,
		#444 0 10%,
		#111 10% 20%
	);

	touch-action: none;
}

canvas {
	width: 100%;
	height: auto;
	object-fit: contain;
}