body {
	text-align: center;
	background: #FFFFFF;
}
.container {
	padding: 150px 0 0 0;
	margin: 0 auto;
 	width: 300px;
}
#menu {
	list-style: none;
	padding:0;
	margin: 0;
	width: 300px;
	height: 300px;
	background: url(images/base.jpg) no-repeat;
	position: absolute;
}
#menu span {
	display: none;
	position: absolute;
}
#menu a {
	display: block;
	text-indent: -900%;
	position: absolute;
	outline: none;
}
#menu a:hover {
	background-position: left bottom;
}
#menu a:hover span{
	display: block;
}
#menu .play {
	width: 150px;
	height: 300px;
	left: 0px;
	top: 0px;
}
#menu .play span {
	width: 150px;
	height: 300px;
	background: url(images/play.jpg) no-repeat;
	left: 0px;
	top: 0px;
}

#menu .work {
	width: 150px;
	height: 300px;
	left: 150px;
	top: 0px;
}
#menu .work span {
	width: 150px;
	height: 300px;
	background: url(images/work.jpg) no-repeat;
	left: 0px;
	top: 0px;
}