.menu {
  float: left;
  position: fixed;
}

.menu ul {
  margin-left: -2em;
  margin-top: 0.5em;
  list-style-type: none;
}

.menu li {
  background-color: #9cf;
  text-decoration: none;
  margin: 2px;
  padding: 5px;
  border: 2px solid #69b;
}

.menu a {
  color: #009;
  text-decoration: none;
  font-weight: bold;
}

.menu li.broken {
  background-color: #69b;
}