Select all that apply.What is Cumulative Layout Shift?

Cumulative Layout Shift(CLS)is indeed a Core Web Vital and a measure of visual stability.As a Core Web Vital, CLS is a key metric identified by Google to assess and quantify the user experience of webpages.It measures the visual stability of a webpage by calculating the sum of all individual layout shift scores that occur during the page'slifespan.A layout shift happens when visible elements on the page unexpectedly move from their original position,causing an unexpected change in the layout. CLS is particularly important because it directly impacts user experience,as unexpected layout shifts can lead to frustration and user dissatisfaction.Therefore,reducing Cumulative Layout Shift is crucial for improving the overall perceived stability of a website and ensuring a smoother browsing experience for users.