Wonderful. I had no idea that there was a monospace font in the Nook.
Yes. I used:
font-family: monospace;
And that works.
I will also take the other suggestion and "call it a day."
Blessings to all.
I shall soon have a big tomb, to add to the pile of the puzzle makers niche market.
(A dictionary to help crossword makers if you haven't guessed.
Did anyone notice the words are in backward alphabetic order and all the
same size?)