[css-lists-3] Require outside markers to be block containers, but don't necessarily blockify them. #4448

Author: fantasai

css-lists-3/Overview.bs

@@ -440,8 +440,8 @@ Positioning Markers: The 'list-style-position' property</h3>
 		<dt><dfn id='list-style-position-outside'>outside</dfn>
 		<dd>
 			If the <a>list item</a> is a <a>block container</a>:
-			the marker box is [=blockified=] [[!CSS-DISPLAY-3]]
-			and placed outside the [=principal box|principal block box=];
+			the marker box is a [=block container=]
+			and is placed outside the [=principal box|principal block box=];
 			however, the position of the list-item marker adjacent to floats is undefined.
 			CSS does not specify the precise location of the marker box
 			or its position in the painting order,