"depth attribute + height property");

      done();
  }
</script>
</head>
<body>
  <div id="log"></div>

    <math>
      <!-- Reference baseline -->
      <mspace id="baseline" style="background: black"
              width="10px" height="100px" depth="100px"/>

      <!-- width="500px" is a presentational hint
           setting the element's width property to the corresponding value,
           overridden by the inline style width: 200px.
           height="200px" sets the height/line-ascent to 200px. --