<style>
 html, body {
	height: 100%;
	margin: 0;
 }
 
 body {
	background-color: #8DC63F;
	font-family: arial, sans-serif;
 }
 
 #contents {
	width: 467px;
	height: 276px;
	text-align: center;
	
	position: absolute;
	top:0;
	bottom: 0;
	left: 0;
	right: 0;

	margin: auto;
 }
 
 #contents a {
	display: inline-block;
	text-decoration: none;
	color: #FFF;
	margin-top: 2em;
	font-size: 1.5em;
 }
 
 #contents a:hover {
	text-decoration: underline;
 }
</style>