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HTML

<table border="1" width="641">
    <thead>

        <tr>
          <th width="50px" bgcolor="DeepSkyBlue" align="center" valign="middle">Col 1a</th>
          <th width="50px" bgcolor="DeepSkyBlue" align="center" valign="middle">Col 1b</th>
          <th width="75px" bgcolor="DeepSkyBlue" align="center" valign="middle">Col 1c</th>
          <th width="100px" style="border-left:medium solid black;" colspan="3" bgcolor="DeepSkyBlue" align="center" valign="middle"><b>Col 2</th>
          <th width="100px" style="border-left:medium solid black;" colspan="1" bgcolor="DeepSkyBlue" align="center" valign="middle"><b>Col 3</th>
          <th width="150px" style="border-left:medium solid black;" colspan="5" bgcolor="DeepSkyBlue" align="center" valign="middle"><b>Col 4<br>more<br>more</th>
          <th width="100px" style="border-left:medium solid black;" colspan="1" bgcolor="DeepSkyBlue" align="center" valign="middle"><b>Col 5</th>
              <th width="16" style="background-color: gray;"></th>
        </tr>
        <tr>
            <th bgcolor="DeepSkyBlue" colspan="3" align="center" valign="middle">Col 1</th>
            <th bgcolor="DeepSkyBlue" style="border-left:medium solid black;" align="center" valign="middle">A</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">B</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">C</th>
            <th bgcolor="DeepSkyBlue" style="border-left:medium solid black;" align="center">1</th>
            <th bgcolor="DeepSkyBlue" style="border-left:medium solid black;" align="center" valign="middle">4-a</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">4-b</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">4-c</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">4-d</th>
            <th bgcolor="DeepSkyBlue" align="center" valign="middle">4-e</th>
            <th bgcolor="DeepSkyBlue" style="border-left:medium solid...