Walt,
(Re: your previous question: the margin problem was there with the mobi file viewed in Calibre)
It looks great!
Thank you very, very much for your effort and explanation - something even I am able to understand. Whatever code with which I was experimenting was apparently wrong and I will use your result as a study guide. Your recommendation of Notepad++ is appreciated - it may be a bit easier for me.
Again, thank you very much for your time and assistance which will hopefully help clueless others as well.
-Pat