ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

li {
  float: left;
  position: relative;
  width: 100px;
  background-color: #A02038;
  text-align: center;
}

li ul {
  display: none;
  position: absolute;
  top: 1em;
  left: 0;
  padding-top: 5px;
}

li.navigation_ebene_2 {
  padding: 5px;
}

li > ul {
  top: auto;
  left: auto;
}

li:hover ul, li.over ul { 
  display: block;
}

#navigation_oben a {
  text-decoration: none;
  color: #ffffff;
}

#navigation_oben li a:hover {
  font-weight: bold;
}

#navigation_oben a.navigation_aktiv {
  text-decoration: none;
  color: #000000;
}