html {
	font-family: sans;
	font-size: 12pt;
	width: 80ch;
	margin: auto;
}

h1 { text-align: center; }

img { 
	display: block;
	margin: auto;
	max-width: 100%;
	border: 1px solid gray;
}

table {
	margin: 1ch auto 1ch auto;
	border: 1px solid gray;
	border-collapse: collapse;
}

th, td {
	padding: 1ch;
	border: 1px solid gray;
}

caption { 
	caption-side: bottom; 
	font-size: small;
	color: gray;
	padding: 1ch;
}

pre, code { border: 1px solid gray; }

pre { padding: 1ch; }

footer { 
	font-size: small;
	color: gray;
}