It appears that the current version of WP (3.3.1) is no longer assigning the class form-allowed-tags to the <p> that contains the tag code, so this CSS cannot be applied. Any ideas of where I can look?
That did the trick, perfectly! Thanks for the wonderful tip!
By the way, I ordered the book “Professional WordPress Plugin Development” by Brad Williams, Ozh Richard, & Justin Tadlock and look forward to diving into the world of plugin development. From what I saw in the Amazon reviews, it promises to be a wonderful resource.