body {font-size: 4pt}
	div.slide {float: left; height: 22em; margin-right: 1em}
        .cover { text-align: center}
        .intropage {page-break-before: always; }
        p.author { font-style: italic}
        p.subtitle { font-weight: bold; }
        h1 {margin-top: 10cm }