CurrentĀ Status: Working Draft (WD)
CanonicalĀ URI:
Abstract: This specification describes an API that can be used to understand the visibility and position of DOM elements ("targets") relative to a containing element or to the top-level viewport ("root"). The position is delivered asynchronously and is useful for understanding the visibility of elements and implementing pre-loading and deferred loading of DOM content.

W3C DOM4 Updates: