Flexbox is pretty awesome and is certainly part of the future of layout. The syntax has changed quite a bit over the past few years, hence the “Old” and “New” syntax. But if we weave together the old, new, and in-between syntaxes, we can get decent browser support. Especially for a simple and probably the most common use case: order-controlled grids.
The old dog is up to his old tricks. Digging deep into the finner points of cutting edge CSS. Great post if you want to dive into Flexbox now.