body {
	background-color: #bbb;
	font-family: verdana, sans-serif;
	user-select: none;
}

#largeGrid {
	display: grid;
	background-color: #999;
	width: 750px;
	height: 750px;
	max-width: 100vw;
	padding: 8px;
	grid-gap: 8px;
	grid-template-columns: 1fr 1fr 1fr;
}

.smallGrid {
	display: grid;
	background-color: #777;
	padding: 4px;
	grid-gap: 4px;
	grid-template-columns: 1fr 1fr 1fr;
}

.cell {
	border: 4px solid #555;
	color: #aaa;
}

.cell:hover {
	cursor: pointer;
}