On: Testing your animation refresh rate with CSS

[perryizgr8]

On my phone, as long as the page is scrolling, it seems to indicate 120 Hz, but after a few seconds there is a sudden switch to 60. Not sure if the tool is working correctly.

[rantallion → perryizgr8]

That'll be one of the tricks your browser employs to save compute time on animations for inactive tabs/windows. Interact with it again and the browser will allow scripts/animations to run at full speed again.

[Clamchop → perryizgr8]

I can get any outer ring to register depending on how fast I scroll. I think it's OLED schmearing.