Hi all,
we'll enable TemplateStyles [1][2] tomorrow on
mediawiki.org,
wikitech.wikimedia.org and some test wikis. (Today for those of you in UTC
or later time zones.)
TemplateStyles allows editors to add complex CSS to templates with the help
of a <templatestyles> tag. This makes template maintenance easier, lowers
the barrier of access (previously you had to be an admin to be able to add
new CSS) and empowers editors to create more user-, mobile- and
print-friendly templates.
For plans for rolling it out to content wikis see T168808 [3].
[1]
https://www.mediawiki.org/wiki/Extension:TemplateStyles
[2]
https://www.mediawiki.org/wiki/Help:TemplateStyles
[3]
https://phabricator.wikimedia.org/T168808