CODE EXAMPLE FOR HTML

header with rowspan

<table>
  <thead>
    <tr>
      <th rowspan="2">No.</th>
      <th rowspan="2">Creation Date</th>
      <th rowspan="2">Week Day</th> 
      <th rowspan="2">Log Type</th>
      <th colspan="2" style="text-align: center">Time</th>
      <th rowspan="2">action</th>
    </tr>
    <tr>
      <th>IN/START</th>
      <th>OUT/STOP</th>
    </tr>
  </thead>
</table>