html,body {		
	margin: 0;
	padding: 0;
	height: 100%;
}
img {
	border:0;
}
#btn_continue {
	position: absolute;
	top: 50%;
	left: 50%;
}
#btn_continue a {
	display: block;
	background: #fff;
	color: #000;
	padding: 5px;
}