DXR will be turned off on Tuesday, December 29th. It will redirect to Searchfox.
See the announcement on Discourse.

DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Line Code
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<!DOCTYPE html>
<html>
  <body>
    <table cellspacing="0" cellpadding="0" style="border: none; padding: 0; margin: 0">
      <tr>
        <td>Cell 1 Cell 2</td>
      </tr>
    </table>
  </body>
</html>