From the discussion in wikitech-l at https://lists.wikimedia.org/pipermail/wikitech-l/2014-December/079844.html:
The Editing Department are replacing the current way of configuring the Cite extension in wikitext with some CSS rules (using ::after and counters), with some default bare HTML styles for older browsers like IE6.
- Provide the styling in the Cite extension
- Use the styling in Parsoid
- Use the styling in VisualEditor
- Use the styling in other consumers of Parsoid HTML