Validation inconsistency between TopStyle 4 und CSE HTML 10?
Validation via TopStyle: no message, everything seems to be ok.
Validation via CSE HTML Validator: report message "The "h1a" is not a recognized element in this selector. Is it misspelled?"
Thank you CSE HTML Validator to identify that error (as it is one as far as I think); but why was this error not found by TopStyle (v22.214.171.124)?
Any explanation? Did I something wrong? Is it a bug?