Thanks, that seems to make the white space larger! I tried putting a – (minus sign) in front of it and that worked on the all pages, expect it now means the footer section on the home page (which uses the home page template) has an overlap. If I try to adjust the minus figure for the top margin until it doesn’t overlap it then goes back to meaning white space on the other pages between the main content and the footer (less than before, but still there!)
Any further suggestions/advice please