columnspan-rowspan-ref.html

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<!DOCTYPE html>

<html>

  <head>

    <meta charset="utf-8">

    <title>columnspan/rowspan (reference)</title>

    <style>

      mtd { padding: 0; }

    </style>

  </head>

  <body>

    <p>This test passes if you see a green square.</p>

    <math>

      <mtable>

        <mtr>

          <mtd>

            <mspace width="200px" depth="200px" style="background: green"/>

          </mtd>

        </mtr>

      </mtable>

    </math>

  </body>

</html>