Closed
Description
New Feature Proposal
Description
I think it should be pretty straight forward / easy to get this in. After all, we only need to see if one of the respective characters is hit and move into selector mode again. The most difficult part will be the adjustments to the data model and the algorithm for creating the render tree.
Background
See https://webkit.org/blog/13813/try-css-nesting-today-in-safari-technology-preview/ for more details.
Specification
The spec is available at https://drafts.csswg.org/css-nesting-1/.