div.cattitle {
background-color: DodgerBlue;
width: 80%;
  color: white;
  padding: 10px;
}

.vertical-menu {
  width: 80%;
  *height: 300px;
  overflow-y: auto;
  display: none;
}

.vertical-menu a {
  background-color: #eee;
  color: black;
  display: block;
  padding: 10px;
  text-decoration: none;
}

.vertical-menu a:hover {
  background-color: #ccc;
}

.vertical-menu a.active {
  background-color: DodgerBlue;
  color: white;
}