BODY  { background: url(http://www.exa.unicen.edu.ar/~azunino/fondo.gif); color: black }
P {
  font-family: sans-serif;
  font-size: small;
}

.section {
  font-weight: bold;
}

.subsection {
  font-weight: normal;
  margin-left: 1em;
}

.footnote {
  font-family: sans-serif;
  font-size: x-small;
  font-style: italic;
}