body {
  max-width: 680px;
  margin: 2em auto 8em auto;
  padding: 0 1em;
  font-family: sans-serif;
  color: #222;
}
ol, ul {
  padding-left: 1.2em;
}
li {
  margin: 0.3em 0;
  line-height: 2;
}
a {
  color: #1a6fd4;
}