So Alex Russell (of Dojo fame), not too happy about where CSS3 is going, suggests of a few more important things that should be considered for inclusion in the CSS standard. For instance, an @importRule directive.

Several commenters have pointed out that @importRule would not be that useful since you can already assign more than one CSS class to an element.

However, having (apparently) some time to waste this morning, I thought it would be interesting to implement this pseudo css rule anyway.

Here’s the example page, with a short explanation of the (very simplistic) javascript:

Again, I’m not claiming that this is very useful, but if one wanted to create a javascript css post-processor, that would be a good way to start.