Empty line between paragraph in epub on Pocketbook 626

[nickie_twisp]

Hi all,
after conversion from pdb to epub and email book to my PB 626 is between every paragraph one empty line.
With Look and Feel have checked "Romove space between paragraphs".

Here is part of html from Ebook editor:
<p class="calibre2">„Paule,” řekl mu rázný mladistvý hlas. Bez místního přízvuku.</p>
<p class="calibre2">„Tak ty mě znáš.”</p>
<p class="calibre2">„Stojím na chodbě ve vedlejším bytě. Je nás tady šest. A dalších šest čeká na ulici.”</p>


Class calibre2 declaration:
.calibre2 {
display: block;
margin: 1em 0
}

Please, how can I remove space between paragraphs? It is used class "calibre2" when PB626 displaying a book?

PS: In mobi format is everything ok, but I can use epub (in mobi have problems with cover)

Thank you.

[theducks]

that is not an 'empty line'
That is a 1em (top and bottom) Margin

change calibre2 line to simply read

margin: 0;

[nickie_twisp]

Thank you. Where i set this as default CSS to all book, converted to epub?