Thank you for your answer. The same question in (bad) english is here:
https://www.mobileread.com/forums/sho...d.php?t=132086
I'll try and give a feedback. Please, note that i tested my output _with_ the calibre browser; the problem is that this browser can scroll pages above, a ebook-reader (I think: every ebook-reader) can't it.
Regards