div.sidebar {
  border: 2pt dotted black;
  padding: 0.5em;
}
.center1 {
  margin-top: 1em;
  text-align: center;
  text-indent: 0em;
}
div.sidebar1 {
  border: 3pt solid;
  padding: 1em;
}
h2.chaptertitle1 {
  font-size: 1.5em;
  text-indent: 0;
  margin-top: 1em;
  text-align: center;
  font-weight: bold;
}
span.underline {
  text-decoration: underline;
}