I'm pretty sure FlexBox solves the "Why the hell can't I center these things vertically relative to one another?!?" problem that CSS has had for a very long tim

I'm pretty sure FlexBox solves the "Why the hell can't I center these things vertically relative to one another?!?" problem that CSS has had for a very long time. Unfortunately, that wasn't the only problem CSS has had. Now we have to wait for CSS Grids, which look awesome and all, but based on history (floats, positioning, inline-blocks, flexbox) I'm not getting my hopes up that Grids will finally make CSS layouts reasonably adequate. (I'm not even raising the bar to 'usable'.)