From 8f053624dd4c17ddc6a782a615e2836ecdbba90b Mon Sep 17 00:00:00 2001
From: Basilisk-Dev <basiliskdev@protonmail.com>
Date: Sat, 9 May 2026 15:24:56 -0400
Subject: [PATCH] Flush layout for computed border-width shorthand

---
 layout/style/nsCSSPropList.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/layout/style/nsCSSPropList.h b/layout/style/nsCSSPropList.h
index ea717c40df..b97038f75a 100644
--- a/layout/style/nsCSSPropList.h
+++ b/layout/style/nsCSSPropList.h
@@ -1271,7 +1271,8 @@ CSS_PROP_SHORTHAND(
     border_width,
     BorderWidth,
     CSS_PROPERTY_PARSE_FUNCTION |
-        CSS_PROPERTY_UNITLESS_LENGTH_QUIRK,
+        CSS_PROPERTY_UNITLESS_LENGTH_QUIRK |
+        CSS_PROPERTY_GETCS_NEEDS_LAYOUT_FLUSH,
     "")
 CSS_PROP_POSITION(
     bottom,