I feel your pain and that's an interesting idea. It sounds a bit above my pay grade, as I'm self-taught with the CSS. Not sure I would know where to start, to be honest. I'm personally not a big fan of the downvoat message because it doesn't fit the Voat culture as well. The downvoating and the banning are carried from Reddit for tradition's sake and I think they flirt too closely with caring about Internet points and censorship.