We had a couple of CSS subs on Voat that had some tutorials and hints on how to change CSS on subs. I would like to start changing some of my subs to make them look a bit better but basically all of my CSS knowledge revolves around editing Voat subs.
Rather than having a sub for this where you have to look for the post you need for a certain thing you want to change, and where posts could be deleted, I think it would be better to have a permanent guide somewhere. If it was made easier for CSS plebs, we could end up with a lot of customised subs rather than just a few where the mods know CSS.
I know this would be quite time consuming so it could be a work in progress. Maybe having a place for people to give submissions for admins to put up on the page would be a good idea. Perhaps a wiki hosted on another site would help to organise the pages so people can find what they need easily.
Eh, "Alpha" kind of gives that warning, and there are CSS related tasks on their bug tracker.