The good news is that I have the independent scroll behavior that
I wanted. There are two bits of bad news. The first is that I don't
UNDERSTAND why this particular configuration, with an extra level of
nesting, made any difference.
The bigger problem is that I still don't see the scroll bars showing
up at all. And that annoys me. I should see them, right?
Moved the 'docs' section down and eliminated the folder. It wasn't
necessary. Built out the Section.html file, and started work on
the SASS. Having a hell of a time getting the side panels to
animate the way they do for adidoks, but I'm sure I'll figure it out
eventually.