Tests various ways that the 'baseline-shift' property (vertical) can be altered.
The first sub test sets the 'baseline-shift' to an absolute unit. The second sub test sets the 'baseline-shift' to a percentage. The third sub test sets the 'baseline-shift' to "sub". The fourth sub test sets the 'baseline-shift' to "super".
Run the test. No interaction required.
The test is passed if four lines of vertical text are rendered.