[css-sizing-4][editorial] Fixed Bikeshed issue and updated WPTs

Author: SebastianZ

css-sizing-4/Overview.bs

@@ -33,6 +33,7 @@ spec:css2; type:property
 	text:max-width
 	text:max-height
 spec:html; type:element; text:meta
+spec:css2; type:dfn; text:document language
 </pre>
 
 
@@ -56,6 +57,7 @@ Introduction</h2>
 		dynamic-change-inline-size-001.html
 		dynamic-change-inline-size-002.html
 		dynamic-change-inline-size-003.html
+		dynamic-change-inline-size-004.html
 		frameset-intrinsic-crash.html
 		inheritance-001.html
 		inheritance-002.html
@@ -118,7 +120,7 @@ Issue: [[css-sizing-3#terms]]
 
 ████▌  ████▌   ███▌  ████▌  ████▌  █████▌ █████▌  ███▌ 
 █▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌     █▌     █▌  █▌
-█▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌     █▌     █▌    
+█▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌  █▌ █▌     █▌     █▌
 ████▌  ████▌  █▌  █▌ ████▌  █▌  █▌ ████   ████    ███▌ 
 █▌     █▌▐█   █▌  █▌ █▌     █▌  █▌ █▌     █▌         █▌
 █▌     █▌ ▐█  █▌  █▌ █▌     █▌  █▌ █▌     █▌     █▌  █▌
@@ -997,7 +999,7 @@ Overriding Contained Intrinsic Sizes: the 'contain-intrinsic-*' properties</h3>
 
 			Note: Whether a [=replaced element=]
 			has an [=internal layout intrinsic size=]
-			is defined by the [=host language=].
+			is defined by the [=document language=].
 			In HTML, only <{iframe}>s do so.
 
 			Issue: Should this apply even when ''contain:layout'' isn't specified?
@@ -1123,7 +1125,7 @@ Responsively-sized iframes</h4>
 
 	Which elements have an [=internal layout intrinsic size=],
 	and how it's determined,
-	are decided by the host language.
+	are decided by the [=document language=].
 	In HTML, only <{iframe}> elements can have an [=internal layout intrinsic size=],
 	and further,
 	only when the contained document has also opted in