body {
	margin: 0;
	overflow: hidden;
}

#play_overlay {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}

#play {
	width: 20vmin;
	height: 20vmin;
}