#main {
	width:100%;
	opacity:0;
	margin: 0 auto;
	text-align: center;
}
img {
	width:100%;
	opacity:0;
}
body {
	font: 1em Helvetica, arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
	font-weight:300;
	color: #333333;
	margin:2em;
	/*background:url("subway-lines.png");*/
	position:absolute;
}
.vis {
	opacity: 1.0!important;
	-webkit-transition: background 1.5s linear;
	-moz-transition: background 1.5s linear;
	-o-transition: background 1.5s linear;
	-ms-transition: background 1.5s linear;
	transition: background 1.5s linear;
}