Has anyone prepared a standard CSS file for use with the Kobo? I will do one myself if none exists, but I really need some more technical data on what the Kobo needs to render EPUB. I get the feeling that, like the early days of the internet when we used to see all those "best viewed in Internet Explorer" signs on web pages, different ebook readers render things ...differently!
I have tried doing some ebooks from text files on the internet (studying classics I often need to wade through pages of obscure Greek authors). Of course the Kobo doesn't render ancient Greek - but that is not surprising and I have to say I read English much faster.
I would love to see a joint project with Note Tab and Sigil! What a great EPUB editor that could be. Until that happens I might try writing a new Note Tab library for some XHTML code and just cutting and pasting into Sigil.