Package-level declarations

The ResizeObserver interface reports changes to the dimensions of an Element's content or border box, or the bounding box of an SVGElement.

The ResizeObserverEntry interface represents the object passed to the ResizeObserver.ResizeObserver constructor's callback function, which allows you to access the new dimensions of the Element or SVGElement being observed.

The ResizeObserverSize interface of the Resize Observer API is used by the ResizeObserverEntry interface to access the box sizing properties of the element being observed.