Originally Posted by Arios
I just had a look on the epub with Sigil and I found no empty space. Please, could you also try with Sigil and give me specific references (no page number but perhaps pieces of text I can search for?)
Did you try with ADE? Maybe the empty space is a result of widows and orphans set to 0.
I believe I solved the problem. Remove the page breaks from the CSS. It seems to work after that. There are 4 of them to be removed.