cool project! flex-box is a mostly self-contained and powerful spec (if i understand correctly). however, when you don't need to account for floats, relative

cool project! flex-box is a mostly self-contained and powerful spec (if i understand correctly). however, when you don't need to account for floats, relative layout, mixed box-sizing, negative margins, complex overflow conditions and interaction with a ton of older specs, you vastly simplify the problem space for yourself. it makes perfect sense for a modern system but is quite far from a general impl that can compute layout from html+css unconditionally. the article starts with: "Once I got an X idea, but its implementation required a calculated DOM with all its styles and goodies" so the goal is not "the most useful subset". flexbox is currently the least-used (& least supported) layout, so for the author's purposes which sounds like scraping existing markup would not help very much.