There are various styles relating to links inside the existing legacy feature. Let's move these into a new feature called content.links
- The elements feature will contain styles for logged in users which want underlined links e.g. .mw-underline-always or e.g. .mw-underline-never
- Plain link external link styling /*.plainlinks a.external */ is moved into elements feature
- autonumber is moved to content.parser-output
- Red link encoding e.g. a.new will be deprecated and moved to skins.