CSS Grid for UI Layouts – Mozilla Hacks – the Web developer blog
▻https://hacks.mozilla.org/2018/02/css-grid-for-ui-layouts
The fundamental problem with Flexbox is that it is one dimensional. This makes Flexbox great for one dimensional uses, like toolbars and navbars, but it begins to fail when I need to align content both horizontally and vertically at the same time. Instead I need real two dimensional layout, which is why I need CSS Grid. Fundamentally Grid is 2D.