[css-lists-3][css-content-3] Note that counter inheritance / quote nesting operates on flat tree. w3c#2679

Author: fantasai

css-content-3/Overview.bs

@@ -466,7 +466,12 @@ The *-quote values of the content property</h4>
 	If the depth is greater than the number of pairs,
 	the last pair is repeated.
 
-	Note that this quoting depth is independent of the nesting of the source document or the formatting structure.
+	Note that this quoting depth is independent of
+	the nesting of the source document or the formatting structure.
+
+	Note: Quote nesting, like [[css-lists-3#inheriting-counters|counter inheritance]],
+	operates on the “flattened element tree”
+	in the context of the [[DOM]].
 
 	Some typographic styles require open quotation marks to be repeated
 	before every paragraph of a quote spanning several paragraphs,

css-lists-3/Overview.bs

@@ -993,6 +993,10 @@ Inheriting Counters</h4>
 	#counter-inheritance-example b.baz { color: blue; }
 	</style>
 
+	Note: Counter inheritance, like regular CSS [=inheritance=],
+	operates on the “flattened element tree”
+	in the context of the [[DOM]].
+
 <h4 id="instantiating-counters">
 Instantiating Counters</h4>