body {
  padding-left: 20%;
  padding-right: 20%;
  font: 12px Arial, Helvetica, sans-serif;
}

h1 {
  font: bold 22px Arial, Helvetica, sans-serif;
  text-align: center;
}

h2 { 
  font: bold 16px Arial, Helvetica, sans-serif;
  padding-top: 15px;
  text-align: center;
}

a {
  color: black;
}

.naviglinks {
  text-align: center;
}

.oldshell {
  font-family: monospace;
  white-space: nowrap;
}

.author {
  text-align: right;
  font-style: italic;
}