[css-align-3] Not all block-level boxes behave as stretch. w3c#5713 (comment)

Author: fantasai

css-align-3/Overview.bs

@@ -1344,7 +1344,8 @@ Inline-Axis (or Main-Axis) Alignment: the 'justify-self' property</h3>
 		<tr>
 			<th>''justify-self/normal'' Behavior
 			<td>
-				Behaves as ''justify-self/stretch''.
+				The box lays out according to the default rules for block layout
+				(see [[CSS2#visudet]]).
 		<tr>
 			<th>Other Details
 			<td>