body { display: flex; flex-wrap: wrap; font-family: sans; }
header { flex-basis: 100%; flex-shrink: 0; }
article { flex-basis: 60%; padding-left: 1em; }
footer { flex-basis: 100%; flex-shrink: 0; }
header nav { display: flex; justify-content: space-between; }
nav a, header a { text-decoration: none ; color: inherit; }
header h1 span { margin-left: 1em; font-size: 50%; font-style: italic; }
body > nav { flex-basis: content; padding-right: 1vw; min-width: 16em; }
nav ul { display: flex; flex-direction: column; list-style-type: none; list-style-position: outside; padding-left: 0;  }
nav li ul { padding-left: 0.6em }
footer { display: flex; justify-content: space-between; }

.subHeader ul {
  margin: 0;
}

.subHeader li {
  display: inline;
  list-style-type: none;
  border-right: 1px solid #aaa;
  margin: 0;
  padding: 0;
}

.subHeader a {
  color: #113;
  padding: 5px;
}

.subHeader a:hover, .thisPage {
  background-color: #eee;
}

.headerMenu {
  background-color: #999;
}

.headerMenu_ {
  background-color: #aaa;
}

.headerMenu__ {
  background-color: #bbb;
}