In #2528924: Spotlight accessibility regressions we converted the Spotlight widget to not use jQuery UI, but we made the minimal changes necessary to the CSS. So, there is still a bunch of left over cruft from jQuery UI!

The only parts I'm really confident about and think we shouldn't change, are the styles directed at .panopoly-spotlight-wrapper, .panopoly-spotlight-label and .panopoly-spotlight-info -- those have gotten a lot of testing and work over several iterations.

The rest should be simplified, pointless styles should be removed and, ideally, we should try to eliminate font changes if possible (while minimizing the affect on the visual appearance).