body {
color: black;
background-color: white;
font-family: sans-serif;
}

.title {
text-align: center
}

.subtitle {
text-align: center;
font-style: italic;
}

.author {
text-align: center;
}

code {
font-size: 120%;
color: green;
}

tt {
font-size: 120%;
}

pre {
font-size: 100%;
color: green;
margin: 1em;
border: 1px dashed;
padding: 1em;
}

.classic {
color: black;
}