Thanks for your reply. I know for a long time that I give you trouble.
BTW, the first try was nearly perfect (LMDE - 64 bits). Only the SVG cover (a wrapper made by Calibre) displayed vertical stripes of white, one at the top and the other down. But I'll probably find the solution using part of the former code and adding some
!important as you teached me. (
OK now, using the other script)
Yes the scripts are of course the same and only differ by the stylesheet. I'll have to use Copy/Paste in the meantime.