header {
  border-bottom: 1px solid #222;
  margin-bottom: 1rem;
}

footer {
  border-top: 1px solid #222;
  margin-top: 1rem;
}

body {
  color: #eee;
  background: #222;
  font-family: monospace;
  font-size: large;
  line-height: 1.5;
}

main {
  display: inline-flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  margin-top: 0.1rem;
  margin-bottom: 0.1rem;
}

div#nav-main {
  width: 15rem;
  height: 100%;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-top: 0.5rem;
  padding-bottom: 5rem;
  margin: 0.5rem;
}

div#content-main {
  width: 80rem;
  height: 100%;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-top: 0.5rem;
  padding-bottom: 5rem;
  margin: 0.5rem;
}

a {
  color: #8cf;
  text-decoration: none;
}

a:visited {
  color: #c8f;
}

nav ul {
  list-style-type: "> ";
  margin-left: 0.5rem;
  margin-top: 0;
  padding-left: 0.5rem;
  padding-top: 0;
}