This is the master bug to implement the clip-path property.
It'd be great if this could be done in the compositor, so animating clip-path is super-smooth. Related Chrome bug https://bugs.chromium.org/p/chromium/issues/detail?id=686074
(In reply to Jake Archibald from comment #1) > It'd be great if this could be done in the compositor, so animating > clip-path is super-smooth. > > Related Chrome bug > https://bugs.chromium.org/p/chromium/issues/detail?id=686074 This seems to be very smooth actually. Can't see an issue with http://output.jsbin.com/ticeve/quiet? That said, if you have a better example that is slow in WebKit/Safar, please open a new issue and mark it blocked by this bug.