Just finished prototyping a set of CSS feature proposals that aim to enable authors to create responsive carousel experiences with pure CSS. Try it out at https://flackr.github.io/web-demos/carousel/
Used my prototype of display animation[1] and transition[2] support to create a demo of entry and exit animations for a dialog in CSS[3].
[1] https://github.com/w3c/csswg-drafts/issues/6429
[2] https://github.com/w3c/csswg-drafts/issues/4441
[3] https://output.jsbin.com/buquher
https://www.w3.org/TR/css-display-3/#the-display-properties I thought we were going for discrete for all properties that can't be intelligently interpolated, and that "not animatable" was reserved ...