Before diving deep into the subject, let’s look briefly at some browser history. Flexbox was inspired by popular UI frameworks such as Bootstrap. Its first working draft was published on July 23, 2009. Eleven years later it’s amazing to see that the support for it has just skyrocketed: Its usage is supported on about 99.2% of browsers.

That is indeed amazing. However, the Grid’s history is even more interesting. It was initially drafted by the Microsoft team and shipped to Internet Explorer 10 in 2011. The Grid Layout spec was then presented to the W3C in 2012. However, it is curious that Microsoft were the ones behind the latest Grid feature development — until they moved to Chromium.

Don’t be fooled by basic Grid support being almost 96%. It has continuously evolved, adding features such as subgrid  that might be only available in a small browser subset. It’s always advisable to check all the Grid features you are using to know its level of support.

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