diff --git a/cssom-view-1/Overview.bs b/cssom-view-1/Overview.bs
index 6c253839bd4..7f461996de1 100644
--- a/cssom-view-1/Overview.bs
+++ b/cssom-view-1/Overview.bs
@@ -1580,6 +1580,7 @@ To scroll an element (or [=pseudo-element=]) element to
partial interface HTMLElement {
+ readonly attribute Element? scrollParent;
readonly attribute Element? offsetParent;
readonly attribute long offsetTop;
readonly attribute long offsetLeft;
@@ -1588,6 +1589,19 @@ partial interface HTMLElement {
};
+The scrollParent attribute must return the result of running these steps:
+1. If any of the following holds true, return null and terminate this algorithm:
+ * The element does not have an associated [=CSS/box=].
+ * The element is the [=root element=].
+ * The element is the body
element.
+ * The element's computed value of the 'position' property is ''position/fixed'' and no ancestor establishes a fixed position [=containing block=].
+1. Let ancestor be the [=containing block=] of the element in the flat tree and repeat these substeps:
+ 1. If ancestor is closed-shadow-hidden from the element, terminate this algorithm and return null.
+ 1. If ancestor is the [=initial containing block=], return the {{Document/scrollingElement}} for the element's document.
+ 1. If ancestor is a scroll container, terminate this algorithm and return ancestor.
+ 1. If the computed value of the 'position' property of ancestor is ''position/fixed'', and no ancestor establishes a fixed position [=containing block=], terminate this algorithm and return null.
+ 1. Let ancestor be the [=containing block=] of ancestor in the flat tree.
+
The offsetParent attribute must return the result of running these steps:
1. If any of the following holds true return null and terminate this algorithm:
@@ -2075,6 +2089,7 @@ generally not listed.
* Introduced the {{VisualViewport}} API and related concepts
* Pinch zoom is now renamed to scale factor
* Added visibilityProperty, opacityProperty, and contentVisiblityAuto properties for {{Element/checkVisibility()}} method.
+* Added the {{HTMLElement/scrollParent}} attribute.
Changes From 22 June 2022
* Adam Argyle moved the scrollend event from WICG overscroll-scrollend-events to [[CSSOM-VIEW-1]]