[css-values-5] Media features, not queries, used in media-progress() w3c#10966

Author: fantasai

css-values-5/Overview.bs

@@ -848,14 +848,15 @@ Media Query Progress Values: the ''media-progress()'' notation</h3>
 	The syntax of ''media-progress()'' is defined as follows:
 
 	<pre class=prod>
-		<dfn><<media-progress()>></dfn> = media-progress(<<media-feature>> from <<calc-sum>> to <<calc-sum>>)
+		<dfn><<media-progress()>></dfn> = media-progress(<<mf-name>> from <<calc-sum>> to <<calc-sum>>)
 	</pre>
 
-	where the value of the <<media-feature>> is the [=progress value=],
+	where the value of the [=media feature=] corresponding to <<mf-name>>
+	is the [=progress value=],
 	and the two calculations are the [=progress start value=] and [=progress end value=],
 	respectively.
 
-	The specified [=media query=] must be a valid “range” type query,
+	The specified [=media feature=] must be a valid “range” type feature,
 	and the specified [=progress start value=] and [=progress end value=]
 	must be valid values for the specified [=media query=],
 	or else the function is invalid.