html, body {
	margin:0;
	padding:0;
	height:100%;
	background-color:#fcfcfc;
}
header {
	text-align:center;
}
#wrapper {
	overflow:hidden;
	margin:0 auto;
	padding:15px;
	max-width:1004px;
	min-height:100%;
	background-color:#ffffff;
	border-left:1px solid #cccccc;
	border-right:1px solid #cccccc;
}
@media screen and (min-width:501px) {
	aside, main {
		width:50%;
	}
	aside {
		float:right;
	}
	main {
		float:left;
	}
}