body {
	margin: 0;
	padding: 0;
	background-color: #ddd;
}

#about-container {
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	display: flex;
	justify-content: center;
	align-items: center;
}

#about {
	width: 430pt;
	font-size: 14pt;
	background-color: #ccc;
	padding: 10pt 18pt;
	border-radius: 12pt;
}

#about p {
	text-align: center;
}

img#open-problem {
	width: 350pt;
}

#game {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

#game canvas {
	width: 300pt;
	height: 300pt;
}

#game #controls {
	display: flex;
}

#game #controls #button {
}