body {
  background: #222222;
  max-width: 50em;
  line-height: 1.6;
  margin: 0 auto;
  padding: 0.5em;
  padding-top: 5em;
  color: #f0f0f0;
  font-family: "Helvetica", "Arial", sans-serif;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

@media print {
  body {
    line-height: 1.4;
  }
}

a {
  color: white;
}

a:hover {
  color: #57b846;
}