th ... ⁄th, optional element ⁄occurrences
The th element is optional. th can be added once or multiple times within the tr element
| 1 2 3 4 5 6 7 8 9 | <!doctype html> <> <> <>...</> </> <> </> </> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | <!doctype html> <> <> <>...</> </> <> <> <>...</> <> <><>...<>...</> <> <> <><>...<>...</> <><>...<>...</> <> <> <><>...<>...</> <><>...<>...</> <> </> </> </> |