thats pretty much what i had a few commits ago before i had to add the multiple active classes, so based on whats going on up in https://github.com/oerpub/github-book/pull/47#discussion-diff-6748003 it will probably look that way again. the only difference is the `btn-link` class, you could hide it via css but you still need to be able to see the title so i opted for removing it via JS over just overriding all the btn-link styles in the active state.