| Tests correct button behavior with respect to collapsing and baseline: Empty buttons have a baseline at the bottom of the content box; buttons with text are aligned so that the text lines up. Also, empty buttons should collapse. | |
| To understand this test, note that with the Ahem font, the bottom of the "X" is 2px below the baseline (at a 10px font-size). | |
| X X | |
| PASS | |
| PASS | |
| PASS | |
| PASS | |