[css-anchor-1] Let anchor-size() use anchor-default too.

Author: tabatkins

css-anchor-1/Overview.bs

@@ -265,7 +265,15 @@ as if by an additional ''translate()'' transform.
 	which input is being referred to.
 </div>
 
-<!-- Big Text: auto -->
+<!--
+   ███    ██     ██ ████████  ███████         ██████  ████ ████████  ████████
+  ██ ██   ██     ██    ██    ██     ██       ██    ██  ██  ██     ██ ██
+ ██   ██  ██     ██    ██    ██     ██       ██        ██  ██     ██ ██
+██     ██ ██     ██    ██    ██     ██        ██████   ██  ██     ██ ██████
+█████████ ██     ██    ██    ██     ██             ██  ██  ██     ██ ██
+██     ██ ██     ██    ██    ██     ██       ██    ██  ██  ██     ██ ██
+██     ██  ███████     ██     ███████         ██████  ████ ████████  ████████
+-->
 
 <h4 id=anchor-auto>
 Automatic Anchor Positioning</h4>
@@ -358,7 +366,7 @@ to refer to the size of one or more [=anchor elements=].
 The ''anchor-size()'' function resolves to a <<length>>.
 
 <pre class=prod>
-anchor-size() = anchor( <<dashed-ident>>? <<anchor-size>>, <<length-percentage>>? )
+anchor-size() = anchor( <<anchor-element>>? <<anchor-size>>, <<length-percentage>>? )
 <dfn><<anchor-size>></dfn> = width | height | block | inline | self-block | self-inline
 </pre>