Great work! I've added this to the list at dropin-minimal-css [0], so you can compare this with other minimal classless frameworks here [1].

(Hint: if you use the bookmarklet, you can quickly preview how MVP.css looks when applied to any HTML page.)

[0]: https://github.com/dohliam/dropin-minimal-css [1]: https://dohliam.github.io/dropin-minimal-css/?mvp