body {
  max-width: 650px;
  margin: 2em auto;
  font-family:  monospace;
  font-size: 14px;
  line-height: 1.6;
  color: #000;
  background: #fff;
}
a { color: #00e; }
a:visited { color: #551a8b; }
hr { border: 1px solid #000; }