body {
  /* Colour scheme roughly based on Solarized.
  (https://ethanschoonover.com/solarized/). */
  background-color: #fdf6e3;
  color: #444;

  font-family: 'Roboto', 'Helvetica', sans-serif;
  margin: 40px auto;
  max-width: 650px;
  line-height: 1.6;
  font-size: 18px;
  padding: 0 10px;
}
h1, h2, h3 {
  line-height: 1.2;
}
.fa {
  color: inherit;
  text-decoration: none;
  padding: 10px 5px;
}
.fa:hover {
    color: #073642;
}