frac-rendering-from-in-flow-ref.html

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<!DOCTYPE html>

<html>

  <head>

    <meta charset="utf-8"/>

    <title>fraction rendering from in-flow children</title>

  </head>

  <body>

    <math>

      <mfrac>

        <mspace width="64px" height="48px" style="background: lightblue"></mspace>

        <mspace width="128px" height="96px" style="background: lightgreen"></mspace>

      </mfrac>

    </math>

  </body>

</html>