article, aside, dialog, figure, footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	font: 112%/1.3 Georgia, serif;
	width: 48em;
	margin: 0 auto;
	padding: 1em 0;
	background: #eee;
}
h1 {
	margin-bottom: 0;
	text-align: center;
	text-shadow: 2px 2px 2px rgba(0,0,0,0.5);
}
img {
	border: 1px solid #666;
}
ul {
	margin-left: 0;
	padding-left: 0;
}
li {
	margin-bottom: 0.5em;
}
em {
	font-weight: bold;
	font-style: normal;
}
a {
	color: #600;
}
p.explanation {
	margin-top: 0;
	margin-bottom: 2em;
	font-size: 60%;
	text-align: center;
}
p.attribution {
	margin: 0;
	font-size: 60%;
	text-align: right;
}
footer {
	margin-top: 2em;
	padding-top: 2em;
	border-top: 1px solid #666;
	font-size: 0.722em;
	font-style: italic;
}