[cybmole]

most - maybe all of my ebook conversions contain this line, before the html body
@page { margin-bottom: 5.000000pt; margin-top: 5.000000pt; }

is it put there by calibre ?

does it do what I think it does - i.e. force a top & bottom margin- if so can I override it with the extra CSS option rather than edit each books contents, so that I have no wasted white space at top / bottom when converted for Kindle ?, or is there a better way to countermand it please ?

PS - google found me this, in an old thread- does calibre still have no override or workaround ?

"Ah, the real problem here is one of calibre's slightly annoying quirks.

Calibre places an @page rule in the header of each html file, and this overrides any @page rule in the css.

The solution is to edit all your html files and remove the style that calibre has inserted at the top. It will look like this:

<style type="text/css">
@page { margin-bottom: 5.000000pt; margin-top: 5.000000pt; }</style>
Once this has gone, then you can control the top and bottom margins from the @page rule in the css file."

PPS I read elsewhere that Kindle ignores or does not support bottom margin - it that's true , then this becomes a question only about controlling top margin,
also ( running out of PPPS's here ) googling "@page rule" suggests that it only applies to printed paginated media, so what is the code for in an .epub ?, and is messing with it a pointless exercise for books destined for e-readers?