efault minsize/maxsize percentages`);

      done();
  }
</script>
</head>
<body>
  <div id="log"></div>
  <p>
    <math>
      <mrow>
        <mspace width="1em" height="5em" style="background: blue"/>
        <mo id="negative_minsize" minsize="-10em" stretchy="true" symmetric="false">⥯</mo>
        <mn><!-- not space like --></mn>
      </mrow>
    </math>
  </p>
  <p>
    <math>
      <mrow>
        <mspace width="1em" height="5em" style="background: blue"/>
        <mo id="maxsize_less_than_minsize" m