@theducks
I know how to edit CSS
But indeed I'm interested in a "normalization of epub code" with as less effort as possible (therefor I asked for heuristics and scripts which help cleaning dirty code) and as much clarity in the code as possible as well.
Little question:
Does anyone of you has tried to use an epub of a typical ebook in form of a single html file inside the container (instead of splitted HTML files)?
Can Kobo Glo digest it?