I'm the original author. This was created a few years ago, at a time when very few browsers fully-supported grid, and although I still use this frequently as a

I'm the original author. This was created a few years ago, at a time when very few browsers fully-supported grid, and although I still use this frequently as a reference, I never took the time to update the disclaimer at the top of the page. If I'd thought there was any chance this would pop up on HN I probably would've updated it awhile ago. At this point, Grid Layout is well-supported in enough modern/evergreen browsers that I don't feel this disclaimer is still necessary. As others have posted IE 11 is really the only reason not to aggressively use grid for many projects. I'll be removing this warning shortly.