From c5107e8755164ca0d175eebe5336c63d6b2beb1f Mon Sep 17 00:00:00 2001
From: Robert Flack <flackr@google.com>
Date: Fri, 13 Dec 2024 12:05:06 -0500
Subject: [PATCH] [css-scroll-snap-1] Scroll by page should not skip over
 content.

As per #10914 when selecting a snap point as a result of a scroll by page operation we should always select a snap position that is less than a page away if one exists.
---
 css-scroll-snap-1/Overview.bs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/css-scroll-snap-1/Overview.bs b/css-scroll-snap-1/Overview.bs
index b93690fb80fe..daf7a4398f3a 100644
--- a/css-scroll-snap-1/Overview.bs
+++ b/css-scroll-snap-1/Overview.bs
@@ -1090,6 +1090,10 @@ Choosing Snap Positions {#choosing}
         if its nearest <a>scroll container</a> is a <a>scroll snap container</a>.
         The user agent <em>may</em> also do this even when the <a>scroll container</a> has ''scroll-snap-type: none''.
 
+    * If a scroll by page operation (e.g. Page down / Page up) is being performed,
+        eligible <a>snap positions</a> that require scrolling less than or equal to the size of the <a>optimal viewing region</a> of the <a>scroll container</a>
+        should be selected before any farther away, ignoring the starting <a>snap positions</a> so that progress is still made in the <a>intended direction</a>.
+
 <h4 id="multiple-aligned-snap-areas">Selecting between multiple aligned snap areas</h4>
 
     When <a>snapping</a> to a scroll position