roman numerals for chapter numbers?

[cderv]

@cderv

Otherwise, you'll need to provide custom templates and formating for each kind of output.

Let's not that this is maybe the easiest solution as you just need to find solution already existing for each output type.

I would say

• Latex => seems ok (sectioning - Roman numerals for sections and subsections - TeX - LaTeX Stack Exchange)
• EPUP or HTML => don't know if possible in CSS only.

I don't know of an easy solution right now. Maybe someone has already done it ?