LayoutShiftAttribution The LayoutShiftAttribution interface describes a single shift of a single DOM element. If multiple elements shift during a layout shift, the sources property contains multiple entries. For example, the JSON below corresponds to a layout shift with one source: the downward shift of the <div id='banner'> DOM element from y: 76 to y:246. // ... "sources": [ { "node": "div#banne
![Debug layout shifts | Articles | web.dev](https://cdn-ak-scissors.b.st-hatena.com/image/square/371152ed8f3721c12bcd2742334e587dc363dddd/height=288;version=1;width=512/https%3A%2F%2Fweb.dev%2Fstatic%2Farticles%2Fdebug-layout-shifts%2Fimage%2Fthumbnail.png)