ul#menu, ul#menu ul {
  font-family: Arial, Helvetica, sans-serif; 
  list-style-type:none;
  margin: 0;
  padding: 0;
  width: 100%;
}

ul#menu a {
  display: block;
  text-decoration: none;	
}

ul#menu li {
  margin-bottom: 1px;
}

ul#menu li a {
  background: #000;
  color: #fff;	
  padding: 0.3em;
  font-size: 13px;
}

ul#menu li a:hover {
  background: #000;
}

ul#menu li ul li a {
  background: #ccc;
  color: #000;
  padding-left: 20px;
  font-size: 11px;
}

ul#menu li ul li a:hover {
  background: #aaa;
  border-left: 5px #000 solid;
  padding-left: 15px;
  cursor: pointer;
}