[nostrademons]

Sure, but there are plenty of other ways to achieve the same effect. One I used for many years was to run your CSS through the same templating engine that generates your HTML. Wait a few more months and you might also get native CSS vars:

http://caniuse.com/#feat=css-variables

[Lazare]

> One I used for many years was to run your CSS through the same templating engine

So...a preprocessor? :)

[nostrademons]

That you have to use anyway.