A grid system without classes would be an incredible feat as I view it as near impossible. Sure, you could do it via targeting elements with descending and sibl

A grid system without classes would be an incredible feat as I view it as near impossible. Sure, you could do it via targeting elements with descending and sibling selectors but you would have to stick to a rigorous markup pattern and could never, ever change it. Plus there's the risk of eventually affecting elements not intended to be targeted. I imagine the same problem would exist for flexbox as well, unless the browsers start having proper flex elements. This isn't really a framework so to speak, it's a css reset. Much like Normalize and Skeleton. There's nothing wrong with it, as more options along those lines are always welcome.