button.fahne {
  margin-top: 3px;
  margin-bottom: 3px;
  margin-left: 1px;
  margin-right: 1px;
  width: 120px;
  height: 40px;
  diplay: inline;
}

button.fahne:hover {
  background-color: lightblue;
}

button.fahne_aktiv:hover {
  background-color: lightgreen;
}

button.fahne_aktiv {
  margin-top: 3px;
  margin-bottom: 3px;
  margin-left: 1px;
  margin-right: 1px;
  background-color: yellow;
  width: 120px;
  height: 40px;
  diplay: inline;
}