Board Thread:Support Requests - Designing Your Wiki/@comment-5558012-20161122010819/@comment-26402117-20161129222337

I think the  declaration was necessary because of the official tabber stylesheet strangely combining element selectors with the class selectors. You have to sadly "sin" to a greater degree than tabber.css in this manner to get rid of the !important declarations, so the decision of which is the lesser of two evils is up to you:

I would personally use  at that point. (^^;)