LibWeb/CSS: Implement revert-layer

With the introduction of the cascade layer, the 5th CSS-wide keyword, `revert-layer`, has been added.
Author: https://github.com/An-n-ya 🔰 Commit: bea7eec518 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1371 Reviewed-by: https://github.com/AtkinsSJ ✅
2025-09-19 07:49:05 +00:00 · 2024-09-11 20:13:44 +08:00 · 2024-09-11 20:13:44 +08:00 · bea7eec518 · 2024-09-11 21:31:19 +00:00
commit bea7eec518
parent 71d977b791
8 changed files with 70 additions and 5 deletions
--- a/Tests/LibWeb/Text/expected/css/revert-layer.txt
+++ b/Tests/LibWeb/Text/expected/css/revert-layer.txt
@ -0,0 +1,4 @@
+    PASS: revert to base (first target)
+PASS: revert to base (second target)
+PASS: double revert (first target)
+PASS: double revert (second target)