Thanks for that. I added those lines to my main CSS file, was that correct?
However they appear to make no difference. I’ve undoubtedly done something wrong, but cannot see what.
Edit: The problem seems to be that I cannot get the leftmost menu bar Menu item to move to the left of the menu bar area. By use of non-blank spaces etc. and can get the rest spaced out towards the right – though IE & FF do things differently!