thanks - it all makes sense now
- I was wrongly replacing .calibreN with my .noindent style but actually I have to append it, like< p class="calibreN noindent" rather than just <p class="noindent".
I should have paid more attention to what theducks ACTUALLY wrote!
& I can put .noindent anywhere in the .css file, so I'll simply add it to top or bottom rather than search for an exact location