[exikyut]

I was very curious what was causing the non-antialiasing, it was fun.

And you can repro :) cool. Makes a lot of sense you can't see it on retina.

Interesting FF bug you hit. CSS3 GPU-accelerated animations are incredibly complex... heh, adding the rule fixed Firefox ~57, but now Chrome 68 is glitching out because the rule is there. I wonder if Google realizes yet. Ponders complexity of creating minimal testcase, versus waiting for someone else to notice :P