Projektowanie tabeli w HTML

<table border="1">
  <tr>
    <td align="center"><b>Data Heading1</b></td>
    <td align="center"><b>Data Heading2</b></td>
   </tr>
  <tr>
    <td>Data 1</td>
    <td>Data 2</td>
   </tr>
  <tr>
    <td>Data 1a</td>
    <td>Data 1b</td>
   </tr>
</table>
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