padded = getBox("width" + i);
        assert_approx_equals(mpadded.width, 25*(i+1), epsilon, "width " + i);
        assert_approx_equals(getBox("baseline").bottom - mpadded.top, 0, epsilon, "height" + i);
        assert_approx_equals(mpadded.bottom - getBox("baseline").bottom, 0, epsilon, "depth" + i);
      }
    }, "Different widths");

    test(function() {
      for (var i = 0; i <= 2; i++) {
        var mpadded = getBox("height" + i);
        assert_equals(mpadded.width, 0, "width" + i);
        assert