Many wikis include now-deprecated rules which are hidden behind this override:
```
.mw-ref > a[ style~='mw-Ref' ]::after {
content: none !important;
}
```
For example, see these rules on [[ https://ar.wikipedia.org/wiki/%D9%85%D9%8A%D8%AF%D9%8A%D8%A7%D9%88%D9%8A%D9%83%D9%8A:Common.css | arwiki ]]:
```
.mw-ref > a[data-mw-group=decimal]::after {
content: '[' counter( mw-Ref, decimal ) ']';
}
.mw-ref > a[data-mw-group=lower-roman]::after {
content: '[' counter( mw-Ref, lower-roman ) ']';
}
....
```
The original intention of these rules is to style Parsoid footnote markers to look the same as legacy parser output, but this has been redundant since {T382310}.
Beginning 20 February, we want to remove all rules affecting the footnote markers. This should be safe, since the visible HTML is already suppressing these rules using the `!important` directive above. When inspecting the HTML DOM in a browser, it should be possible to see that the rules to be deleted are disabled and not part of the rendered page.
Do not change rules related to backlink markers, these match on `mw:referencedBy` and they will be addressed in later work.
See https://www.mediawiki.org/wiki/Parsoid/Parser_Unification/Cite_CSS for an overview of the migration.
[[ https://global-search.toolforge.org/?q=mw-ref%5B%5E-a-z%5D®ex=1&namespaces=8&title=.*css | This search ]] finds 114 occurrences of this sort of rule.