I'll prefix that I don't know if a design pattern like masonry needs quite this much attention — I've always had it in my mind as a very specific answer to a very specific question: "how do we lay out various sized media?" Masonry is really useful for sites like Unsplash and Pinterest — galleries — but I'm not sure how useful it is away from that. But, it's great to see browser vendors trying to remove the need for JavaScript — often the tool of choice for a masonry layout — and bri...