<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  </head>
  <body>
    <table style="width:200px; table-layout:fixed; background:darkkhaki;">
      <tr>
        <td style="width:10%; background:plum;">
          <div style="background:pink;">AAA</div>
        </td>
        <td style="width:30%; background:dodgerblue; padding-left:50px;">
          <div style="background:lightblue;">BBB</div>
        </td>
        <td style="width:60%; background:crimson;">
          <div style="background:gold;">CCC</div>
        </td>
      </tr>
    </table>
  </body>
</html>