html, body {
	height: 100%;
	background-color: #000;
	margin: 0px;
	padding: 0px;
	font-family: Arial, Helvetica, sans-serif;
}
div {
	float:left;
	text-align: center;
}
#all {
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -280px;
	margin-left: -380px;
	width: 760px;
	height: 560px;
}
a {
	text-decoration: none;
	color: #f00;
}
a:hover {
	text-decoration: none;
	color: #fff;
}
#intro {
	display: none;
}