frac-created-dynamically-4-ref.html

<!DOCTYPE html>
<html>
  <head>
    <title>mfrac childnode update</title>
  </head>
  <body>
    <math>
      <mfrac style="font-size: 300%">
        <mfrac>
          <mi>a</mi>
          <mi>b</mi>
        </mfrac>
        <mfrac>
          <mi>c</mi>
          <mi>d</mi>
        </mfrac>
      </mfrac>
    </math>
  </body>
</html>

chromium/third_party/blink/web_tests/external/wpt/mathml/presentation-markup/fractions/frac-created-dynamically-4-ref.html