[css-sizing-3] Use preferred aspect ratio in place of intrinsic aspect ratio as appropriate. w3c#4962

Author: fantasai

css-sizing-3/Overview.bs

@@ -504,7 +504,7 @@ Sizing Values: the <<length-percentage>>, ''width/auto'' | ''max-width/none'', '
 	These keywords have been deferred to Level 4
 	(along with an additional ''width/contain'' keyword that
 	behaves similarly to ''width/stretch''
-	but preserves the intrinsic aspect ratio, if any)
+	but preserves the [=preferred aspect ratio=], if any)
 	to better work out the implications in situations with
 	<a>indefinite</a> <a>available space</a>.
 
@@ -872,20 +872,20 @@ Intrinsic Sizes</h3>
 	The [=min-content size=] and [=max-content size=] are collectively referred to
 	as the <dfn export id=dfn-intrinsic-sizes>intrinsic sizes</dfn>.
 
-	Note: Note that when the box has an intrinsic aspect ratio,
+	Note: Note that when the box has a [=preferred aspect ratio=],
 	size constraints in the opposite dimension will transfer through
 	and can affect the ''width/auto'' size in the considered one.
 	See <a href="https://www.w3.org/TR/CSS2/visudet.html">CSS2&sect;10</a>.
 
 	If the <a>max-content size</a> would depend
 	on the size of the containing block
-	(as it sometimes does for images with an intrinsic aspect ratio but no intrinsic size,
+	(as it sometimes does for images with an [=intrinsic aspect ratio=] but no [=intrinsic dimensions|intrinsic size=],
 	see <a href="https://www.w3.org/TR/CSS2/visudet.html#inline-replaced-width">CSS2&sect;10.3.2</a>)
 	such that it can't be calculated against an infinitely-sized containing block
 	then:
 
 	<dl>
-		<dt>For boxes with an intrinsic aspect ratio, but no intrinsic size:
+		<dt>For boxes with a [=preferred aspect ratio=], but no [=intrinsic dimensions|intrinsic size=]:
 		<dd>
 			* If the <a>available space</a> is <a>definite</a>
 				in the <a>inline axis</a>,
@@ -908,7 +908,7 @@ Intrinsic Sizes</h3>
 				the corresponding dimension of the [=initial containing block=]
 				and calculate the other dimension using the aspect ratio.
 
-		<dt>For boxes without an intrinsic aspect ratio:
+		<dt>For boxes without a [=preferred aspect ratio=]:
 		<dd>
 			* If the <a>available space</a> is <a>definite</a>
 				in the appropriate dimension,
@@ -1310,6 +1310,9 @@ Changes</h2>
 			to use the ICB size instead of 300px&times;150px.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/4218">Issue 4218</a>)
 
+		<li>
+			Defined [=preferred aspect ratio=] and used it in place of [=intrinsic aspect ratio=] where appropriate.
+
 		<li>
 			Miscellaneous minor / editorial fixes.
 	</ul>