mo-invisibleoperators-ref.html | Explore in Territory

<!DOCTYPE html>
<html>
  <math>
    <mrow>
      <mn>1</mn>
      <mn>2</mn>
      <mn>3</mn>
      <mn>4</mn>
      <mn>5</mn>
      <mspace height="2em" width="0.1em"></mspace>
    </mrow>
  </math>
</html>

chromium/third_party/blink/web_tests/external/wpt/mathml/presentation-markup/operators/mo-invisibleoperators-ref.html