      <thead>
             <tr>
               <th style="width: 150px;">Event</th>
               <th>Description</th>
             </tr>
            </thead>
            <tbody>
             <tr>
               <td>show</td>
               <td>This event fires on tab show, but before the new tab has been shown. Use <code>event.target</code> and <code>event.relatedTarget</code> to target the active tab and the previous active tab (if available) respectively.</td>
            </tr>
            <tr>
        