testing/web-platform/tests/mathml/presentation-markup/operators/op-dict-8-ref.html


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<!DOCTYPE html>
<html>
<head>
  <title>op-dict lspace and rspace</title>
</head>
<body>
  <math>
    <mrow>
      <mi>x</mi><mo form="prefix" lspace="0.16666666666666666em" rspace="0em">&#x2202;</mo><mi>y</mi>
    </mrow>
  </math>
</body>
</html>