PerformanceLongAnimationFrameTiming: styleAndLayoutStart property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The styleAndLayoutStart read-only property of the PerformanceLongAnimationFrameTiming interface returns a DOMHighResTimeStamp indicating the beginning of the time period spent in style and layout calculations for the current animation frame.