html, body {
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
}
body {
	background: #000;
	color: #fff;
	margin: 0;
	font-family: sans-serif;
}

ul{
	height: 120px;
	position: absolute;
	margin: auto;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	padding: 0;
	text-align: center;
	font-size: 0;
}

li {
	margin: 0 0 20px 0;
	overflow: hidden;
	width: 100px;
	height: 120px;
	display: inline-block;
	font-size: 0;
}

li a {
	display: block;
	background-repeat: no-repeat;
	width: 100px;
	white-space: nowrap;
	text-indent: 100%;
	height: 100px;
}

li a:hover {
	height: 120px;
}

@media screen and (max-width: 1000px) {
	ul {
		width: 500px;
		top: -120px;
	}
}