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What’s slated for CSS4 Selectors?

The CSS Working Group recently published the first working draft of CSS4 Selectors. “Wait…CSS 4? I thought CSS3 was still incomplete” you might ask. The spec process changed after CSS2.1. Instead of one monolithic spec, CSS3 was broken down into smaller bite sized chunks. Each chunk or module graduate to the Recommendation stage independently when they’re ready. As each module doesn’t depend on each other (typically. Some related modules might have dependancies, such as CSS3 Selectors on CSS Namespaces) work can start on the next level of the module–if there is demand for a new version–after the current level reaches REC. Therefor work on CSS4 specs will go on in parallel with CSS3 modules. The selectors specification is one such module where there is demand for some new features .

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