With the Flex SDK Gumbo alpha release almost ready, I wanted to blog about the new advanced CSS selector capabilities.
We’ve added support for descendant selectors, class conditions for type selectors (previously class conditions were only registerd by themselves at the top level, i.e. “globally” instead of on a type by type basis), and id conditions for both type selectors as well as globally. These selectors were chosen as they were seen as the most requested by the community.
A few known issues that will be fixed shortly after alpha include allowing combinations of conditions at the top level (e.g. a top level id and class selector together in a selector chain, “.specialButton#button12″);