Andrey
Many thanks for the quick response. I am most grateful.
% should work. I have changed them statically within the CSS whilst using Textfield and it does respond to the correct %.
However, I think you have put me onto the right track. It does respond dynamically when px is used, without using remove and add plugin.
I just need to now find some quantity, propably screen height, to base the new px size on as the screen changes size.
Many thanks.
Howver I think you may have put me onto the right track. I am now using +