Board Thread:Support Requests - Designing Your Wiki/@comment-5441589-20190902132258/@comment-36497343-20190902152708

Someone else should be able to help you out with the border one (if it's possible :P) - I've never seen it done but, then again, it's not the kind of thing I look for.

As for the second question, I've also never seen that done before. You can only use this for tabs inside your own wiki (they can be any pages). It works like this: User:Perished/Subpage1|Tab1 User:Perished/Subpage2|Tab2 User:Perished/Subpage3|Tab3 User:Perished/Subpage4|Tab4 User:Perished/Subpage5|Tab5 although I wouldn't reccomend doing this - it doesn't work on mobile and it takes a few seconds to load. I believe that is what you're asking - correct me if I'm wrong!