TEST<table class="frequency-table">
 <thead>
   <tr>
     <th>Quelle / Lebewesen</th>
     <th>20 Hz</th>
     <th>200 Hz</th>
     <th>2 kHz</th>
     <th>20 kHz</th>
     <th>Ultraschall</th>
   </tr>
 </thead>
 <tbody>
   <tr>
     <td>Mensch</td>
     <td colspan="4" class="range active">Hörbereich</td>
     <td class="range inactive">—</td>
   </tr>
   <tr>
     <td>Andere Säugetiere (z. B. Hunde, Rehe)</td>
     <td colspan="5" class="range active">Erweiterter Hörbereich</td>
   </tr>
   <tr>
     <td>Vögel (allgemein)</td>
     <td class="range inactive">—</td>
     <td colspan="3" class="range active">Hörbereich</td>
     <td class="range inactive">—</td>
   </tr>
   <tr>
     <td><strong>RAPTOR</strong></td>
     <td class="range inactive">—</td>
     <td colspan="3" class="range active">Wirkbereich</td>
     <td class="range inactive">—</td>
   </tr>
   <tr>
     <td>Pyrotechnik (Knallapparate)</td>
     <td colspan="3" class="range active">Schallanteil</td>
     <td colspan="2" class="range inactive">—</td>
   </tr>
   <tr>
     <td>Ultraschall-Hochtongeräte</td>
     <td colspan="3" class="range inactive">—</td>
     <td colspan="2" class="range active">Ultraschallbereich</td>
   </tr>
 </tbody>
</table>