[css-anchor-position] Make anchor-size usable in the other accepted @position-try properties. #9827

Author: tabatkins

css-anchor-position-1/Overview.bs

@@ -1317,7 +1317,7 @@ The ''anchor-size()'' Function {#anchor-size-fn}
 ------------------------------
 
 <pre class="propdef partial">
-Name: width, height, min-width, min-height, max-width, max-height
+Name: width, height, min-width, min-height, max-width, max-height, top, left, right, bottom, margin-top, margin-left, margin-right, margin-bottom 
 New values:	<<anchor-size()>>
 </pre>
 
@@ -1372,8 +1372,9 @@ An ''anchor-size()'' function is a
 <dfn lt="valid anchor-size function|invalid anchor-size function">valid anchor-size function</dfn>
 only if all the following conditions are true:
 
-* It's being used in a [=sizing property=]
+* It's being used in a [=sizing property=], an [=inset property=], or a [=margin property=]
 	on an [=absolutely-positioned=] element.
+	<span class=note>(These are the [=accepted @position-try properties=] that allow lengths.)</span>
 * There is a [=target anchor element=]
 	for the element it's used on,
 	and the <<anchor-element>> value specified in the function.