Thanks for your reply.
I've been through padding and margin settings from top to bottom in the Atahualpa CMS.
I find the code is rather hard to understand, so I don't dig so deep on there.
The site URL is
http://www.idehillschool.org.
In the meantime I'll check the %bar1 and 2. Certainly other evils have lurked here in the past!
Thanks again!