https://drafts.fxtf.org/motion-1/

• Outstanding issues inline.
• Blink I2I: https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/uqDmsIj6zJY/cS-Vp_XG2oYJ
• Blink I2S: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/N4o2MoV1zuw