body {
        font-family: sans-serif;
	margin-left: auto;
	margin-right: auto;
	max-width: 30em;/* an extra 1em to compensate for the indention of p */
}
h1 {
        font-family: Optima, sans-serif;
        font-style: italic;
}
p.disclaimer {
	font-size: 0.8em;
}