Review comments.

Author: flackr

css-overflow-4/Overview.bs

@@ -286,11 +286,11 @@ Expanding Clipping Bounds: the 'overflow-clip-margin-*' properties</h3>
 	with ''overflow: hidden'' or ''overflow: scroll'',
 	which are not defined to use the [=overflow clip edge=].
 
-<h3 id="scroll-markers">
-Overflow Controls: the 'scroll-markers' property and pseudo-elements</h3>
+<h3 id="scroll-marker-group">
+Overflow Controls: the 'scroll-marker-group' property and pseudo-elements</h3>
 
 	<pre class=propdef>
-	Name: scroll-markers
+	Name: scroll-marker-group
 	Value: none | before | after
 	Initial: none
 	Applies to: [=scroll containers=]
@@ -300,10 +300,10 @@ Overflow Controls: the 'scroll-markers' property and pseudo-elements</h3>
 	Canonical Order: per grammar
 	</pre>
 
-	The 'scroll-markers' property specifies whether the [=scroll container=] should have a '::scroll-marker-group' pseudo-element created,
+	The 'scroll-marker-group' property specifies whether the [=scroll container=] should have a '::scroll-marker-group' pseudo-element created,
 	and its position relative to the scroll container.
 
-	<dl dfn-type=value dfn-for=scroll-markers>
+	<dl dfn-type=value dfn-for=scroll-marker-group>
 		<dt><dfn>none</dfn>
 		<dd>
 			The [=scroll container=] does not create a '::scroll-marker-group' pseudo-element.
@@ -324,7 +324,7 @@ Overflow Controls: the 'scroll-markers' property and pseudo-elements</h3>
 
 	The <dfn selector>::scroll-marker-group</dfn> pseudo-element box
 	is generated by a [=scroll container=] element
-	having a computed 'scroll-markers' property that is not 'none',
+	having a computed 'scroll-marker-group' property that is not 'none',
 	representing a stylable sibling pseudo-element immediately adjacent to the [=scroll container=].
 
 	The following additions are recommended for the default UA stylesheet
@@ -337,9 +337,10 @@ Overflow Controls: the 'scroll-markers' property and pseudo-elements</h3>
 
 <h4 id="fragment-pseudo-element">The ''::scroll-marker'' pseudo-element</h4>
 
-	When the computed 'content' value of an element is not 'none',
-	the <dfn selector>::scroll-marker</dfn> psuedo-element generates a box
-	as if it was a child of the ''::scroll-marker-group'' box on its nearest ancestor [=scroll container=].
+	When the computed 'content' value of a <dfn selector>::scroll-marker</dfn> pseudo-element is not 'none'
+	and its nearest ancestor [=scroll container=] [=scroll container=] has a computed 'scroll-marker-group' property that is not 'none',
+	the pseudo-element generates a box attached as a child of the ''::scroll-marker-group'' pseudo-element's generated box
+	on its nearest ancestor [=scroll container=].
 	These boxes are added in the [=tree order=] of their <a>originating element</a>.
 
 	These pseudo-elements behave as a <{button}>