main > header {
  @include display(flex);
  @include align-items(center);
  @include justify-content(space-between);

  padding: 2em 1em;

  h1 {
    font-family: courier;
  }

  nav {
    a {
      margin: 0 1em;
      font-size: 0.8em;
    }
  }
}