#page_top {
	position: fixed;
	bottom: 30px;
	right: 20px;
	font-size: 77%;
}
#page_top a {
	background: url(../images/pagetop.png) no-repeat;
	text-decoration: none;
	color: #fff;
	width: 63px;
	height: 62px;
	text-align: center;
	display: block;
}
#page_top a:hover {
	background: url(../images/pagetop_o.png) no-repeat;
}
#page_top a span {
	display: none;
}