h1 {
	text-align: center;
	font-size: 4rem;
	margin: 0;
	padding: 20px 0;
}

#grid {
	max-width: 381px;
	height: 381px;
	margin: 20px auto;
	background: black;
}

.square {
	width: 33.3%;
	float: left;
	height: 33.3%;
	display: block;
	scale: .99;
	box-sizing: border-box;
}

.midh {
	border-top: 1.59px solid black;
	border-bottom: 1.59px solid black;
}

.midv {
	border-left: 1.59px solid black;
	border-right: 1.59px solid black;
}