From Wazeopedia

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span {
div.top {
	margin: 20px 0;
	position: relative;
	width: 120px;
	height: 70px;
	border: 1px solid #aaa;
	overflow: hidden;
	div.top div {
		width: 100px;
		height: 50px;
		font-size: 12px;
		padding: 10px;
		position: absolute;
		top: 0;
		left: 0;
		text-align: center;
		background: #fff;
	div.top div.first {
		z-index: 1000;
div.top:hover div.first {
	display: none;