vlc-menu.css

/* Common CSS for menu management */

nav {
  background-color: #333;
  color: #fff;
  display: block;
  border: 0;
  margin: 0;
  overflow: hidden;
  font-size: 15px;
}
nav ul{
  margin: 0;
  padding: 0;
  list-style: none;
}
nav ul li {
  margin: 0;
  display: inline-block;
  list-style-type: none;
  transition: all 0.2s;
}

nav > ul > li > a {
  color: #aaa;
  display: block;
  line-height: 1.5em;
  padding: 0.5em 2em;
  text-decoration: none;
}
nav li > ul{
  display: none;
  margin-top: 1px;
  background-color: #bbb;
}
nav li > ul li{
  display: block;
}
nav  li > ul li a {
  color: #111;
  display: block;
  line-height: 1.1em;
  padding: 0.5em 2em;
  text-decoration: none;
}
nav li:hover {
  background-color: #666;
}
nav li:hover > ul{
  position: absolute;
  display: block;
}
nav li > ul > li ul  {
  display: none;
  background-color: #888;
}
nav li > ul > li:hover > ul  {
  position: absolute;
  display: block;
  margin-left: 100%;
  margin-top: -3em;
}