[css-syntax] More serialization corner cases.

Author: SimonSapin

css-syntax/Overview.html

@@ -4483,7 +4483,7 @@ <h2 class="heading settled heading" data-level=9 id=serialization><span class=se
 	CSS grammars always interpret any amount of whitespace as identical to a single space.
 
 	<div class=note id=serialization-tables><style scoped>
-			#serialization-tables th { font-size: 85%; line-height: normal }
+			#serialization-tables th { font-size: 80%; line-height: normal }
 		</style>
 
 		<a class=self-link href=#serialization-tables></a>
@@ -4496,9 +4496,17 @@ <h2 class="heading settled heading" data-level=9 id=serialization><span class=se
 				followed by a <a data-link-type=dfn href=#newline title=newline>newline</a>.
 				(The tokenizer only ever emits such a token followed by a <a class="production css-code" data-link-type=type href=#typedef-whitespace-token title="<whitespace-token>">&lt;whitespace-token&gt;</a>
 				that starts with a newline.)
+
+			<li>
+				A <a class="production css-code" data-link-type=type href=#typedef-hash-token title="<hash-token>">&lt;hash-token&gt;</a> with the "unrestricted" type flag may not need
+				as much escaping as the same token with the "id" type flag.
+
 			<li>
+				The unit of a <a class="production css-code" data-link-type=type href=#typedef-dimension-token title="<dimension-token>">&lt;dimension-token&gt;</a> may need escaping
+				to disambiguate with scientific notation.
 
-<p>				For any consecutive pair of tokens,
+			<li>
+				For any consecutive pair of tokens,
 				if the first token shows up in the row headings of either of the following two tables,
 				and the second token shows up in the column headings,
 				and there’s a ✗ in the cell denoted by the intersection of the chosen row and column,

css-syntax/Overview.src.html

@@ -2997,8 +2997,16 @@ <h2 id="serialization">
 				followed by a <a>newline</a>.
 				(The tokenizer only ever emits such a token followed by a <<whitespace-token>>
 				that starts with a newline.)
+
+			<li>
+				A <<hash-token>> with the "unrestricted" type flag may not need
+				as much escaping as the same token with the "id" type flag.
+
 			<li>
+				The unit of a <<dimension-token>> may need escaping
+				to disambiguate with scientific notation.
 
+			<li>
 				For any consecutive pair of tokens,
 				if the first token shows up in the row headings of either of the following two tables,
 				and the second token shows up in the column headings,
@@ -3016,7 +3024,7 @@ <h2 id="serialization">
 		</ul>
 
 		<style>
-			#serialization-tables th { font-size: 85%; line-height: normal }
+			#serialization-tables th { font-size: 80%; line-height: normal }
 		</style>
 
 		<table class='data'>