Thread:Seaside98/@comment-5884303-20130605025014/@comment-5153769-20130605025535

It uses... Well, I hardly understand it, I just adapted it from something else. It pretty much calls MW:Customs using the int: magic word, and then calls MW:Customs1 and MW:Customs2 using verbatim. That lets you add stuff like style tags without them being disabled. (It was originally used to make Template:YTMusicPlayer work)