html {
	background-color: black;
	font-family: Arial, Helvetica, sans-serif;
	color: white;
	}
body {
	font-size: 100%;
	margin-left: 2em;
	margin-right: 2em;
	}
header {
	padding-bottom: .75em;
	border-bottom: 3px solid blue;
	margin-bottom: 0;
	text-align: center;
	}
h1 {
	font-size: 200%;
	margin-bottom: 0;
	}
h2 {
	font-size: 150%;
	margin-bottom: 0:
	}