Whatever we do has to work on online and downloadable version. Better for one window. If they did then text would show. Author does corresponding text to show against background. So for Bobby half would be unreadable.
Lets work offline to figure out how to force background at bottom.
I'd like a backlink. If there's just one instance it can be just a general tip. The problem doesn't necessarily appear in the code. Separate but also dependent on examination logic. You'd click hat and it would open box to fix the problem.