body {
	margin:0;
	padding:0;
}
* {
	-moz-transition:all 0.8s ease;
	-webkit-transition:all 0.8s ease;
	-o-transition:all 0.8s ease;
	-ms-transition:all 0.8s ease;
	transition:all 0.8s ease;
}
#wrapper {
		width:880px;
	margin:0 auto;
	height:600px;
	position:absolute;
	left:50%;
	margin-left:-440px;
	top:50%;
	margin-top:-300px;
}
.light {
	float:left;
	width:440px;
	height:599px;
	opacity:0.7;
}
.dark {
	float:right;
	width:440px;
	height:599px;
	opacity:0.7
}
.light:hover,.dark:hover {
	opacity:1;
	margin-top: 25px;
}