MediaWiki Theme: Fix border width for frameless buttons' focus state
MediaWiki Theme: Fix border width for frameless buttons' focus state

Bug: T87692
Change-Id: I61d3c570973e30f9f484b402a4c42d493209ede3

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui