The evidence is that he was one of the designers. You seem to be missing the very simple fact that CSS is has not always existed, and it was not suddenly discov

The evidence is that he was one of the designers. You seem to be missing the very simple fact that CSS is has not always existed, and it was not suddenly discovered by programmer explorers, whose prerogative it is to define its usage by their usage. It was designed by a standards body. Of designers. The designers designed the usage, and it's the designers' prerogative to define mis-use.