@media screen and (min-width: 480px) {
#content {
	margin-left: 240px;
	margin-right: 240px;
}

#aside {
	width: 220px;
}

#nav {
	margin-left: 240px;
}

#head hgroup {
	width: 220px;
	}

#nav ul li {
	width: 100px;
}
}