body {
	font-family: "URW Gothic L", "URWGothicL", "URWGothicLDem",
		"Avant Garde Gothic", "ITC Avant Garde Gothic", AvantGarde,
		"Monotype Century Gothic", "Century Gothic", CenturyGothic,
		"TeX Gyre Adventor",
		sans-serif;
}
div.contents {
	margin-left: auto;
	margin-right: auto;
	max-width: 30em;
}
h1, p.subhead {
	text-align: center;
}
table {
	border-collapse: collapse;
	margin-left: auto;
	margin-right: auto;
}
td {
	border: silver 1px solid;
	vertical-align: center;
	text-align: center;
	padding: 0.5em;
}