It's important to me to emphasize the value of validation. In this case, that's best accomplished with the transitional doctype. More experienced coders can understand and differentiate between errors that need to be fixed, like stray tags, and those that are less significant. Noobs haven't learned that yet; so they make the page work somehow, and shy away from the uncomplimentary validator. I believe validation should be and is meaningful. "transitional", IN THIS CASE, helps. Otherwise, I'd go strict.
I'm not pushing horses and carriages. I am picking my lessons, though.
When the page is finished change the doctype to strict, if preferred, and publish.
Gotta go. My cat brought me a fuzzy. She wants to play "fetch".