[css-properties-values-api-1] Align with Web IDL specification (#1005)

autokagami · web-flow · commit 42fb542c5db2 · 2020-08-18T12:55:12.000-07:00
diff --git a/css-properties-values-api/Overview.bs b/css-properties-values-api/Overview.bs
@@ -602,7 +602,7 @@ dictionary PropertyDefinition {
 };
 
 partial namespace CSS {
-	void registerProperty(PropertyDefinition definition);
+	undefined registerProperty(PropertyDefinition definition);
 };
 </pre>
 
