Address review comments

Author: schenney-chromium

css-pseudo-4/Overview.bs

@@ -696,6 +696,8 @@ Styling Highlights</h3>
     <wpt>
     css/css-pseudo/textpath-selection-011.html
     </wpt>
+
+    <li>A [=custom property=] may be defined and/or used inside a highlight pseudo-element.
   </ul>
 
   The 'forced-color-adjust' property cannot be set on [=highlight pseudo-elements=];
@@ -868,11 +870,12 @@ Cascading and Per-Element Highlight Styles</h3>
   This occurs regardless of whether that property is an <a>inherited property</a>
   (and regardless of whether that property is a [=custom property=]
   that is registered to [=CSS/inherit=] or not).
-  Additionally,
-  for [=highlight pseudo-elements=] originating from the root element,
-  the [=inherited value=] of 'color'
-  is ''currentColor'',
-  not the [=initial value=].
+  
+  Additionally, for [=highlight pseudo-elements=] originating from the [=root element=]:
+  <ul>
+   <li> the inherited value of 'color' is ''currentColor'', not the [=initial value=].
+   <li> [=custom properties=] inherit from the [=root element=].
+  </ul>
 
   <wpt>
   css/css-pseudo/active-selection-051.html
@@ -936,14 +939,7 @@ Cascading and Per-Element Highlight Styles</h3>
   css/css-pseudo/cascade-highlight-002.html
   </wpt>
 
-<h4 id="highlight-custom-properties">
-Custom Properties in Highlight Styles</h3>
-
-  A [=custom property=] used in highlight styles uses the
-  first custom property value found in the highlight cascade.
-  However, if a custom property value cannot be resolved
-  through the highlight cascade, the property value is taken from
-  the root element.
+  The following examples demonstrates the inheritaqnce of [=custom properties=].
 
   <div class="example">
     For example, if an author specified
@@ -976,7 +972,7 @@ Custom Properties in Highlight Styles</h3>
     ''div::selection'' itself.
   </div>
 
-  This behavior is intended to accomodate the standard practice of
+  Note: This behavior is intended to accomodate the standard practice of
   defining document-wide custom properties on '':root''.
 
 <h3 id="highlight-painting">