mathbackground-004-notref.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>mathbackground on semantics (reference)</title>

<math xmlns="http://www.w3.org/1998/Math/MathML">

  <semantics mathbackground="red">

    <mtext>□■□■□■□</mtext>

  </semantics>

</math>