From 00138fb097d31f75017b1556223d3f3618f2eaa7 Mon Sep 17 00:00:00 2001
From: Kyo Nagashima <hail2u@gmail.com>
Date: Thu, 10 Jul 2025 07:23:03 +0900
Subject: [PATCH] Add position-4.vim

https://www.w3.org/TR/2025/WD-css-position-4-20250708/
---
 after/syntax/css/position-4.vim | 2 ++
 test/test.css                   | 4 ++++
 2 files changed, 6 insertions(+)
 create mode 100644 after/syntax/css/position-4.vim

diff --git a/after/syntax/css/position-4.vim b/after/syntax/css/position-4.vim
new file mode 100644
index 0000000..eeb1338
--- /dev/null
+++ b/after/syntax/css/position-4.vim
@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained overlay
+syn keyword cssPseudoClassId contained backdrop
diff --git a/test/test.css b/test/test.css
index 4ee519a..6f0028c 100644
--- a/test/test.css
+++ b/test/test.css
@@ -879,6 +879,10 @@ mask {
   inset: auto;
 }
 
+.position-4::backdrop {
+  overlay: auto;
+}
+
 .properties-values-api-1 {
   syntax: auto;
   inherits: auto;