[css-content-3] 'quotes: auto' resolves lang against the parent w3c#5478

Author: fantasai

css-content-3/Overview.bs

@@ -416,7 +416,8 @@ Specifying quotes with the 'quotes' property</h4>
 			A typographically appropriate [=used value=] for 'quotes'
 			is automatically chosen by the UA
 			based on the [=content language=]
-			of the element and/or its parent.
+			of the parent
+			(or, if there is no parent, of the element itself).
 
 			Note: The Unicode Common Locale Data Repository [[CLDR]]
 			maintains information on typographically appropriate quotation marks.