Add support for CSS prefers-reduced-motion media feature.
New in CSS Media Queries Level 5:
WebKit blog post covering the feature, justification, and examples:
Alastair Campbell commented
There is potentially a new WCAG success criteria coming in 2018 about animations/motion:
It would be very handy for developers to 'have their cake and eat it', i.e. have the animations requested by some people, but allow users to turn it off.
James Craig commented