u nested within elements, elements nested within u
Classified as: flow content, phrasing content, palpable content
Parents, u
Children, u
Examples: u parents, u children
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <!doctype html> <> <> <>...</> </> <> <> <> ... </> </> <>...</> </> </> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <!doctype html> <> <> <>...</> </> <> <> <> <> ... </> </> </> </> </> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <!doctype html> <> <> <>...</> <>...</> </> <> <> <> ... </> </> </> </> |
Syntax 1: Valid, u nested within p, body: allowed
Syntax 2: Valid, a nested within u: allowed
Syntax 3: Invalid, u nested within head: not allowed; article nested within u: not allowed