[selectors-4][editorial] Logical combos after a pseudo-el restrict more than just what pseudo-classes are allowed in their args. w3c#7085

Author: tabatkins

selectors-4/Overview.bs

@@ -863,7 +863,8 @@ Pseudo-classing Pseudo-elements</h4>
 	Combinations that are not explicitly allowed are [=invalid selectors=].
 
 	Note: The [=logical combination pseudo-classes=]
-	pass any restrictions on validity of [=pseudo-classes=] to their arguments.
+	pass any restrictions on validity of selectors at their position
+	to their arguments.
 
 	<div class="example">
 		For example, since the '':hover'' pseudo-class specifies