7 ms·

Alternatively, could use an IntersectionObserver to stop and start it.

• dspillett 5y ago
  That too if off-screen animation is causing excess CPU use. Though the loop than ends or only results in occasional animation has another rather nice benefit: less stuff jiggling around to drag my attention away from what I'm actually trying to look at. And using that will break the articles “with pure CSS” intent.