.menue1        {        visibility: visible;
                        Left:   10px;
                        Top:     0px;
                        Width: 120px;
                }

   .menue2        {        visibility: visible;
                        Left:   10px;
                        Top:     0px;
                        Width: 120px;
                }

   .menue3        {        visibility: visible;
                        Left:   10px;
                        Top:     0px;
                        Width: 120px;
                }

   .sichtbar        {        display: ;
                }

   .unsichtbar        {        display: none;
                }