Quote:
Originally Posted by theducks
 Oops
I should have written \s* which is 0 or more whitespace
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We gonna try it again

thank you !
In Sigil this works, in Calibre not so it seems that search and replace for bulk conversion skips the css

I got to find something else and go back to my first screen,find the solution in the look and behave screen in this post :
https://www.mobileread.com/forums/sho...78&postcount=1