diff --git a/css/at-rules.json b/css/at-rules.json
index ccbdbf3a..51eef4a7 100644
--- a/css/at-rules.json
+++ b/css/at-rules.json
@@ -334,6 +334,7 @@
       "CSSImportRule"
     ],
     "groups": [
+      "CSS Cascading and Inheritance",
       "CSS Conditional Rules",
       "Media Queries"
     ],