This is really cool. As I was writing some media queries today, I was yearning for a simpler solution.

Couple of nice-to-haves: - More examples (though I'm guessing this is really new, and they will come in time). - Guidance on best practices for variable naming (when an element has multiple responsive properties). I just ended up doing `--sm-property-name` for each variable.

Are you looking for contributors? I intend to use this approach for a project over the next few days, and I could help with the documentation.