simba/doc/doc.css

div.section {
  margin-left: 2em;
  max-width: 40em;
  border-left-style: hidden;
  border-width: 1px;
  background-color: #FFF;
}

h2 {
  background-color: #CCC;
}

h3 {
  background-color: #CCC;
}