Not sure you can call it "upcoming" yet, but I'm pretty excited about the silly things you can do with CSS Houdini. Though while I dig JS, having the page's layout entirely dependent on more JS doesn't feel great.
really? who names these things? i'd like to submit my resume.
Houdini could be the most exciting thing coming to CSS. Can't wait to see things progressing, and see things more defined in relation to Layout API, Parser API and Font Metrics API. Cool stuff!
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