Why do we have [this](https://github.com/archlinux/archweb/blob/master/sitestatic/archnavbar/archnavbar.css) and [this](https://github.com/archlinux/archweb/blob/master/sitestatic/archweb.css#L9-L37)? Also, we should probably use [arch-common-style](https://gitlab.archlinux.org/archlinux/archlinux-common-style) to generate the navbar style. (Didn't check yet if there is actually a visual difference...)