Blank rows have the same dimensions as the preceeding row, but with zero width spaces in the cells instead of text.
combinations of 100%, 600px, and auto
| auto | auto | auto |
| 600px | 600px | 600px |
| 100% | 100% | 100% |
| auto | 600px | 100% |
| auto | 600px | 100% |
| auto | 600px | 100% |
| auto | 600px | 100% |
| 100% | auto | 600px |
| 600px | 100% | auto |
combinations of 50%, 200px, and auto
| auto | auto | auto |
| 200px | 200px | 200px |
| 50% | 50% | 50% |
| auto | 200px | 50% |
| auto | 200px | 50% |
| auto | 200px | 50% |
| auto | 200px | 50% |
| 50% | auto | 200px |
| 200px | 50% | auto |