mathml/presentation-markup/operators/mo-lspace-rspace-4-ref.html

<!DOCTYPE html>
<html>
  <head>
    <title>mo-lspace-rspace-4 (reference)</title>
    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
    <style>
      math {
        font: 25px/1 Ahem;
      }
    </style>
  </head>
  <body>
    <p>
      <math>
        <mtext>_</mtext>
        <mrow>
          <mfrac>
            <mo lspace="1em" rspace="2em">_</mo>
            <mtext>_</mtext>
          </mfrac>
        </mrow>
        <mtext>_</mtext>
      </math>
    </p>
  </body>
</html>