Container timing performance entriesA container performance entry measures time to render child elements, for container elements that have the containertiming attribute.performancePerformancelimitedhttps://wicg.github.io/container-timing/https://developer.mozilla.org/docs/Web/API/HTMLElementapi.HTMLElement.containerTimingapi.HTMLElement.containerTimingIgnoreapi.PerformanceContainerTimingapi.PerformanceContainerTiming.firstRenderTimeapi.PerformanceContainerTiming.identifierapi.PerformanceContainerTiming.intersectionRectapi.PerformanceContainerTiming.lastPaintedElementapi.PerformanceContainerTiming.rootElementapi.PerformanceContainerTiming.sizehtml.global_attributes.containertiminghtml.global_attributes.containertimingignorehttps://nowyoucanuse.com/features--container-timing.html