ction() {
      assert_true(MathMLFeatureDetection.has_mspace());

      var v1 = 5000 * emToPx;
      var tableMiddle = (getBox("table").bottom + getBox("table").top) / 2;
      assert_approx_equals(getBox("baseline").bottom - tableMiddle,
                           v1, epsilon, "mtable: axis height");
    }, "AxisHeight");

    done();
  }
</script>
</head>
<body>
  <div id="log"></div>
  <p>
    <math style="font-family: axisheight5000-verticalarrow14000">
      <mspace id="baseline" style="background: g