Follow-up ea856105f2b: fix horizontal scrollbars in Monobook
Follow-up ea856105f2b: fix horizontal scrollbars in Monobook

A positive text-indent causes horizontal scrollbars, so just hide the
screenreader text by making it transparent, and accept that we're going
to have the hover tooltip issue (T161302) in Monobook.

Bug: T226594
Change-Id: I6cb9ec146c2b469cbfb1fdc57937794d237e46db

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo