body {
  /* margin: 30px; */
  margin: 0 auto;
  max-width: 600px;
  font-family: sans-serif;
  line-height: 1.4em;
  padding: 16px;
}
li {
  margin-bottom: 8px;
}
.header a {
  color: rgba(0,0,0,0.5);
  text-decoration: none;
}
h1 {
}
h2 {
  color: rgba(0,0,0,0.5);
}
h3 {
  color: rgba(0,0,0,0.5);
}
a {
  color: rgba(0,0,255,0.75);
}