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   <table>      <caption>Filter table test</caption>      <thead>         <tr>            <th></th>         </tr>         <tr>            <td colspan="">               <label for="filter">Filter: </label>               <input type="text" name="filter" id="filter">                <input type="submit" value="submit">            </td>         </tr>      </thead>      <tbody>         <tr>           <td></td>         </tr>      </tbody>   </table></form>