body {
    font-family: palatino, georgia, verdana, arial, sans-serif;
    font-size: 12pt;
}

.doctest-block {
    font-family: monaco, andale mono, lucidatypewriter, courier,
                 courier new, monospace;
    font-size: 10pt;
    background-color: #eeeeee;
}

.literal {
    font-family: monaco, andale mono, lucidatypewriter, courier,
                 courier new, monospace;    
    font-size: 10pt;
    background-color: #eeeeee;
}

a {
    color: black;
}

.document {
    width: 50em;
    margin: 0 auto;
}