[css-overflow-3] Cross-link padding box

Author: fantasai

css-overflow-3/Overview.bs

@@ -388,7 +388,7 @@ Scrolling and Clipping Overflow: the 'overflow-x', 'overflow-y', and 'overflow'
 		<dt><dfn>hidden</dfn>
 		<dd>
 			This value indicates that
-			the box’s content is clipped to its padding box
+			the box’s content is clipped to its [=padding box=]
 			and that the UA must not provide any scrolling user interface
 			to view the content outside the clipping region,
 			nor allow scrolling by direct intervention of the user,
@@ -419,7 +419,7 @@ Scrolling and Clipping Overflow: the 'overflow-x', 'overflow-y', and 'overflow'
 		<dt><dfn>scroll</dfn>
 		<dd>
 			This value indicates that
-			the content is clipped to the padding box,
+			the content is clipped to the [=padding box=],
 			but can be scrolled into view
 			(and therefore the box is a <a>scroll container</a>).
 			Furthermore, if the user agent uses a scrolling mechanism