body {
	margin: 0;
	padding: 0;
	display: flex;
	align-items: center;
	width: 100vw;
	height: 100vh;
	justify-content: center;
	background-color: #000;
	color: #fff;
	font-family: sans-serif;
}

#board {
	position: fixed;
	top: 0;
	left: 0;
}

#description {
	z-index: 1;
	text-align: center;
	margin: 2em;
}

.visually-hidden:not(:focus):not(:active) {
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	height: 1px;
	overflow: hidden;
	position: absolute;
	white-space: nowrap;
	width: 1px;
}

#version {
	position: fixed;
	bottom: 0;
	left: 0;
	opacity: 0.7;
	font-size: small;
	padding: 0.5em;
	margin: 0;
}

#update-available {
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	text-align: center;
	padding: 1em;
	margin: 0;
	background-color: #333;
}

#update-available a {
	color: #0ff;
}