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To target multiple classes with the same prefix, you'd typically have to resort to brittle attribute selectors. To make things easier, CSS is getting a new selector: the “Class Prefix Selector” (`.foo-*`). Check brm.us/class-prefix... to get the details. (Browser Support: None 😛 — just resolved!)

This is very cool! In the current spec it has the same specificity as a regular class, has that been discussed/consciously designed? .foo-* is more 'generic' than .foo-bar, so there's an argument to be made it should have a lower specificity.

Seems like a good thing to bring up at the WG for further discussion. Shall I file an issue, or will you file one?