Thread:Bunai Di/@comment-188432-20180902192555/@comment-188432-20180904065533

As far as I can tell, though, your CSS is fine. It's successfully changing colors, because you already have CSS that responds to theme definition. To see the changes, go here. Then change the top  tag to. Then hit the desktop preview button. Your infobox will have changed colors to something more purple.

The implication of this is that you have to make a separate infobox template for every theme you want to use. That's why there are over 74 infobox templates at Harry Potter.