[css-syntax-3] Undo link breakage due to for=CSS attribute.

Author: fantasai

css-syntax-3/Overview.bs

@@ -1625,7 +1625,7 @@ Parsing</h2>
 	The items that can appear in the tree are:
 
 	<dl export dfn-for=CSS>
-		<dt><dfn>at-rule</dfn>
+		<dt><dfn id="at-rule">at-rule</dfn>
 		<dd>
 			An at-rule has a name,
 			a prelude consisting of a list of component values,
@@ -1637,7 +1637,7 @@ Parsing</h2>
 			how to parse it
 			(preferably using one of the parser algorithms or entry points defined in this specification).
 
-		<dt><dfn>qualified rule</dfn>
+		<dt><dfn id="qualified-rule">qualified rule</dfn>
 		<dd>
 			A qualified rule has
 			a prelude consisting of a list of component values,
@@ -1647,7 +1647,7 @@ Parsing</h2>
 			where the prelude is a selector [[SELECT]]
 			and the block a <a lt="parse a list of declarations">list of declarations</a>.
 
-		<dt><dfn>declaration</dfn>
+		<dt><dfn id="declaration">declaration</dfn>
 		<dd>
 			A declaration has a name,
 			a value consisting of a list of component values,
@@ -1660,13 +1660,13 @@ Parsing</h2>
 			instead, it is a product of where the declaration appears,
 			and is defined by the respective specifications defining the given rule.)
 
-		<dt><dfn>component value</dfn>
+		<dt><dfn id="component-value">component value</dfn>
 		<dd>
 			A component value is one of the [=preserved tokens=],
 			a [=function=],
 			or a [=simple block=].
 
-		<dt><dfn>preserved tokens</dfn>
+		<dt><dfn id="preserved-tokens">preserved tokens</dfn>
 		<dd>
 			Any token produced by the tokenizer
 			except for <<function-token>>s,
@@ -1684,12 +1684,12 @@ Parsing</h2>
 			to define more fine-grained error-handling
 			than just dropping an entire declaration or block.
 
-		<dt><dfn>function</dfn>
+		<dt><dfn id="function">function</dfn>
 		<dd>
 			A function has a name
 			and a value consisting of a list of component values.
 
-		<dt><dfn>simple block</dfn>
+		<dt><dfn id="simple-block">simple block</dfn>
 		<dd>
 			A simple block has an associated token (either a <a href="#tokendef-open-square">&lt;[-token></a>, <a href="#tokendef-open-paren">&lt;(-token></a>, or <a href="#tokendef-open-curly">&lt;{-token></a>)
 			and a value consisting of a list of component values.