[css-pseudo-4] Clarify antecedents. w3c#6022

Author: fantasai

css-pseudo-4/Overview.bs

@@ -797,13 +797,13 @@ Text and Text Decorations</h4>
 
   A <a>highlight pseudo-element</a>
   suppresses the normal drawing of any associated text
-  (and any text decorations applied to that text).
+  (and the text decorations that had been applied to that text).
   Instead the topmost active <a>highlight overlay</a>
   redraws that text
-  (and its decorations)
+  (and those decorations)
   over the <a>highlight overlay</a> backgrounds
   <!-- (and outlines, if any) -->
-  using its own 'color'.
+  using the highlight’s own 'color'.
 
   For this purpose,
   ''currentColor'' on a [=highlight pseudo-element=]’s 'color' property represents
@@ -815,7 +815,7 @@ Text and Text Decorations</h4>
   Any text decorations introduced by each <a>highlight pseudo-element</a>
   are stacked in the same order as their backgrounds
   over the text’s original decorations
-  and are all drawn, in their own colors.
+  and are all drawn, each decoration in its own color.
 
   Note: The element’s own text decorations
   (both <a href="https://www.w3.org/TR/css-text-decor/#line-decoration">line decorations</a>