From 28704249134b82411f78872a1c90bcea1997e4b6 Mon Sep 17 00:00:00 2001
From: Kevin Babbitt
Date: Thu, 26 Mar 2026 11:06:22 -0700
Subject: [PATCH 1/3] [css-gaps-1] Clarify application of writing-mode and
direction to gap decorations. #13648, #13649
---
css-gaps-1/Overview.bs | 38 +++++++++++++++---
css-gaps-1/images/example-inset-direction.png | Bin 0 -> 9537 bytes
2 files changed, 33 insertions(+), 5 deletions(-)
create mode 100644 css-gaps-1/images/example-inset-direction.png
diff --git a/css-gaps-1/Overview.bs b/css-gaps-1/Overview.bs
index e930ba8f3773..43e338af758a 100644
--- a/css-gaps-1/Overview.bs
+++ b/css-gaps-1/Overview.bs
@@ -169,6 +169,17 @@ Gap decorations
note that while the border and background of the container aren't scrolled,
the decorations need to scroll along with items in the container.
+ [=Gap decorations=] follow the definitions of "column" and "row" laid out by the container to which the properties are applied.
+ They depend on the container type taking 'writing-mode' and 'direction' into account when determining the meanings of these terms.
+ For examples, see:
+ [[CSS-MULTICOL-2#the-multi-column-model]],
+ [[CSS-FLEXBOX-1#flex-direction-property]],
+ and
+ [[CSS-GRID-1#grid-concepts]].
+
+ Properties in this specification whose names begin with "column" apply to [=column gaps=],
+ and properties in this specification whose names begin with "row" apply to [=row gaps=].
+