w3c
diff --git a/‎css3-conditional/Overview.html‎
Lines changed: 60 additions & 45 deletions b/‎css3-conditional/Overview.html‎
Lines changed: 60 additions & 45 deletions
diff --git a/‎css3-conditional/Overview.src.html‎
Lines changed: 21 additions & 6 deletions b/‎css3-conditional/Overview.src.html‎
Lines changed: 21 additions & 6 deletions
@@ -169,32 +169,31 @@ <h2 class="no-num no-toc" id=contents>Table of contents</h2>
 
    <li><a href="#contents"><span class=secno>3. </span>Contents of
     conditional group rules</a>
-    <ul class=toc>
-     <li><a href="#group-error"><span class=secno>3.1. </span>Error
-      handling</a>
-    </ul>
 
-   <li><a href="#at-media"><span class=secno>4. </span>Media-specific style
+   <li><a href="#use"><span class=secno>4. </span>Use of conditional group
+    rules</a>
+
+   <li><a href="#at-media"><span class=secno>5. </span>Media-specific style
     sheets: the &lsquo;<code class=css>@media</code>&rsquo; rule</a>
 
-   <li><a href="#at-supports"><span class=secno>5. </span>Feature queries:
+   <li><a href="#at-supports"><span class=secno>6. </span>Feature queries:
     the &lsquo;<code class=css>@supports</code>&rsquo; rule</a>
 
-   <li><a href="#at-document"><span class=secno>6. </span>Document queries:
+   <li><a href="#at-document"><span class=secno>7. </span>Document queries:
     the &lsquo;<code class=css>@document</code>&rsquo; rule</a>
 
-   <li><a href="#conformance"><span class=secno>7. </span>Conformance</a>
+   <li><a href="#conformance"><span class=secno>8. </span>Conformance</a>
     <ul class=toc>
-     <li><a href="#conformance-classes"><span class=secno>7.1.
+     <li><a href="#conformance-classes"><span class=secno>8.1.
       </span>Conformance Classes</a>
 
-     <li><a href="#partial"><span class=secno>7.2. </span> Partial
+     <li><a href="#partial"><span class=secno>8.2. </span> Partial
       Implementations</a>
 
-     <li><a href="#experimental"><span class=secno>7.3. </span>Experimental
+     <li><a href="#experimental"><span class=secno>8.3. </span>Experimental
       Implementations</a>
 
-     <li><a href="#cr-exit-criteria"><span class=secno>7.4. </span>CR Exit
+     <li><a href="#cr-exit-criteria"><span class=secno>8.4. </span>CR Exit
       Criteria</a>
     </ul>
 
@@ -418,14 +417,30 @@ <h2 id=contents><span class=secno>3. </span>Contents of conditional group
   <p>Style sheets <strong>must not</strong> use rules other than the allowed
    ones inside conditional group rules.
 
-  <h3 id=group-error><span class=secno>3.1. </span>Error handling</h3>
-
-  <p>Implementations <strong>must</strong> ignore rules that are not allowed
-   within a group rule.
-
-  <p class=issue>Define error handling rules for unknown things.
-
-  <h2 id=at-media><span class=secno>4. </span>Media-specific style sheets:
+  <p>CSS processors <strong>must</strong> ignore rules that are not allowed
+   within a group rule, and <strong>must</strong> handle invalid rules inside
+   of group rules as described in <a
+   href="http://www.w3.org/TR/CSS21/syndata.html#parsing-errors">section 4.2
+   (Rules for handling parsing errors)</a>, <a
+   href="http://www.w3.org/TR/CSS21/syndata.html#at-rules">section 4.1.5
+   (At-rules)</a>, and <a
+   href="http://www.w3.org/TR/CSS21/syndata.html#rule-sets">section 4.1.7
+   (Rule sets, declaration blocks, and selectors)</a> of <a href="#CSS21"
+   rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>.
+
+  <h2 id=use><span class=secno>4. </span>Use of conditional group rules</h2>
+
+  <p>Conditional group rules are allowed at the top-level of a style sheet,
+   and inside other conditional group rules. CSS processors
+   <strong>must</strong> process such rules as <a
+   href="#processing">described above</a>.
+
+  <p>Any rules that are not allowed after a ruleset are also not allowed
+   after a conditional group rule. Therefore, style sheets <strong>must
+   not</strong> place such rules after a conditional group rules, and CSS
+   processors <strong>must</strong> ignore such rules.
+
+  <h2 id=at-media><span class=secno>5. </span>Media-specific style sheets:
    the &lsquo;<code class=css>@media</code>&rsquo; rule</h2>
 
   <p>The <dfn id=media-rule>&lsquo;<code class=css>@media</code>&rsquo;
@@ -470,7 +485,7 @@ <h2 id=at-media><span class=secno>4. </span>Media-specific style sheets:
   <p class=issue>This changes the <code>S*</code> in CSS 2.1 into
    <code>S+</code>. Is that correct?
 
-  <h2 id=at-supports><span class=secno>5. </span>Feature queries: the
+  <h2 id=at-supports><span class=secno>6. </span>Feature queries: the
    &lsquo;<code class=css>@supports</code>&rsquo; rule</h2>
 
   <p>The <dfn id=supports-rule>&lsquo;<code class=css>@supports</code>&rsquo;
@@ -673,7 +688,7 @@ <h2 id=at-supports><span class=secno>5. </span>Feature queries: the
 }</pre>
   </div>
 
-  <h2 id=at-document><span class=secno>6. </span>Document queries: the
+  <h2 id=at-document><span class=secno>7. </span>Document queries: the
    &lsquo;<code class=css>@document</code>&rsquo; rule</h2>
 
   <p>The <dfn id=document-rule>&lsquo;<code class=css>@document</code>&rsquo;
@@ -852,9 +867,9 @@ <h2 id=at-document><span class=secno>6. </span>Document queries: the
   : URI | FUNCTION
   ;</pre>
 
-  <h2 id=conformance><span class=secno>7. </span>Conformance</h2>
+  <h2 id=conformance><span class=secno>8. </span>Conformance</h2>
 
-  <h3 id=conformance-classes><span class=secno>7.1. </span>Conformance
+  <h3 id=conformance-classes><span class=secno>8.1. </span>Conformance
    Classes</h3>
 
   <p>Conformance to the CSS Conditional Rules Module is defined for three
@@ -900,7 +915,7 @@ <h3 id=conformance-classes><span class=secno>7.1. </span>Conformance
    the generic CSS grammar and the individual grammars of each property in
    this module.
 
-  <h3 id=partial><span class=secno>7.2. </span> Partial Implementations</h3>
+  <h3 id=partial><span class=secno>8.2. </span> Partial Implementations</h3>
 
   <p>So that authors can exploit the forward-compatible parsing rules to
    assign fallback values, CSS renderers <strong>must</strong> treat as
@@ -914,7 +929,7 @@ <h3 id=partial><span class=secno>7.2. </span> Partial Implementations</h3>
    unsupported values must be), CSS requires that the entire declaration be
    ignored.
 
-  <h3 id=experimental><span class=secno>7.3. </span>Experimental
+  <h3 id=experimental><span class=secno>8.3. </span>Experimental
    Implementations</h3>
 
   <p>To avoid clashes with future CSS features, the CSS specifications
@@ -928,7 +943,7 @@ <h3 id=experimental><span class=secno>7.3. </span>Experimental
    should implement the non-prefixed syntax for any feature they consider to
    be correctly implemented according to spec.
 
-  <h3 id=cr-exit-criteria><span class=secno>7.4. </span>CR Exit Criteria</h3>
+  <h3 id=cr-exit-criteria><span class=secno>8.4. </span>CR Exit Criteria</h3>
 
   <p id=cr-exit-criteria> For this specification to be advanced to Proposed
    Recommendation, there must be at least two independent, interoperable
@@ -1126,62 +1141,62 @@ <h2 class=no-num id=index>Index</h2>
    <li>conformance
     <ul>
      <li>authoring tool, <a href="#conform-authoring-tool"
-      title="conformance, authoring tool"><strong>7.1.</strong></a>
+      title="conformance, authoring tool"><strong>8.1.</strong></a>
 
      <li>renderer, <a href="#conform-renderer" title="conformance,
-      renderer"><strong>7.1.</strong></a>
+      renderer"><strong>8.1.</strong></a>
 
      <li>style sheet, <a href="#conform-style-sheet" title="conformance,
-      style sheet"><strong>7.1.</strong></a>
+      style sheet"><strong>8.1.</strong></a>
     </ul>
 
    <li>&lsquo;<code class=css>@document</code>&rsquo; rule, <a
-    href="#document-rule" title="'@document' rule"><strong>6.</strong></a>
+    href="#document-rule" title="'@document' rule"><strong>7.</strong></a>
 
    <
5E30
li>domain(), <a href="#url-domain"
-    title="domain()"><strong>6.</strong></a>
+    title="domain()"><strong>7.</strong></a>
 
    <li>domain matching function, <a href="#domain-matching-function"
-    title="domain matching function"><strong>6.</strong></a>
+    title="domain matching function"><strong>7.</strong></a>
 
    <li>exact url matching function, <a href="#exact-url-matching-function"
-    title="exact url matching function"><strong>6.</strong></a>
+    title="exact url matching function"><strong>7.</strong></a>
 
    <li>group rule body, <a href="#group-rule-body" title="group rule
     body"><strong>3.</strong></a>
 
    <li>&lsquo;<code class=css>@media</code>&rsquo; rule, <<
AD90
/span>a
-    href="#media-rule" title="'@media' rule"><strong>4.</strong></a>
+    href="#media-rule" title="'@media' rule"><strong>5.</strong></a>
 
    <li>regexp(), <a href="#url-regexp"
-    title="regexp()"><strong>6.</strong></a>
+    title="regexp()"><strong>7.</strong></a>
 
    <li>&lsquo;<code class=css>@supports</code>&rsquo; rule, <a
-    href="#supports-rule" title="'@supports' rule"><strong>5.</strong></a>
+    href="#supports-rule" title="'@supports' rule"><strong>6.</strong></a>
 
-   <li>url(), <a href="#url-exact" title="url()"><strong>6.</strong></a>
+   <li>url(), <a href="#url-exact" title="url()"><strong>7.</strong></a>
 
    <li>URL matching functions, <a href="#url-matching-functions" title="URL
-    matching functions"><strong>6.</strong></a>
+    matching functions"><strong>7.</strong></a>
     <ul>
      <li>domain, <a href="#url-domain" title="URL matching functions,
-      domain"><strong>6.</strong></a>
+      domain"><strong>7.</strong></a>
 
      <li>exact, <a href="#url-exact" title="URL matching functions,
-      exact"><strong>6.</strong></a>
+      exact"><strong>7.</strong></a>
 
      <li>prefix, <a href="#url-prefix" title="URL matching functions,
-      prefix"><strong>6.</strong></a>
+      prefix"><strong>7.</strong></a>
 
      <li>regular expression, <a href="#url-regexp" title="URL matching
-      functions, regular expression"><strong>6.</strong></a>
+      functions, regular expression"><strong>7.</strong></a>
     </ul>
 
    <li>url-prefix(), <a href="#url-prefix"
-    title="url-prefix()"><strong>6.</strong></a>
+    title="url-prefix()"><strong>7.</strong></a>
 
    <li>url prefix matching function, <a href="#url-prefix-matching-function"
-    title="url prefix matching function"><strong>6.</strong></a>
+    title="url prefix matching function"><strong>7.</strong></a>
   </ul>
   <!--end-index-->
 </html>
 
@@ -266,12 +266,27 @@ <h2 id="contents">Contents of conditional group rules</h2>
 <p>Style sheets <strong>must not</strong> use rules other than the allowed ones inside
 conditional group rules.</p>
 
-<h3 id="group-error">Error handling</h3>
-
-<p>Implementations <strong>must</strong> ignore rules that are not
-allowed within a group rule.</p>
-
-<p class="issue">Define error handling rules for unknown things.</p>
+<p>CSS processors <strong>must</strong> ignore rules that are not
+allowed within a group rule, and <strong>must</strong> handle invalid
+rules inside of group rules as described in <a
+href="http://www.w3.org/TR/CSS21/syndata.html#parsing-errors">section
+4.2 (Rules for handling parsing errors)</a>, <a
+href="http://www.w3.org/TR/CSS21/syndata.html#at-rules">section 4.1.5
+(At-rules)</a>, and <a
+href="http://www.w3.org/TR/CSS21/syndata.html#rule-sets">section 4.1.7
+(Rule sets, declaration blocks, and selectors)</a> of [[!CSS21]].</p>
+
+<h2 id="use">Use of conditional group rules</h2>
+
+<p>Conditional group rules are allowed at the top-level of a style
+sheet, and inside other conditional group rules.  CSS processors
+<strong>must</strong> process such rules as <a
+href="#processing">described above</a>.</p>
+
+<p>Any rules that are not allowed after a ruleset are also not allowed
+after a conditional group rule.  Therefore, style sheets <strong>must
+not</strong> place such rules after a conditional group rules, and CSS
+processors <strong>must</strong> ignore such rules.</p>
 
 <h2 id="at-media">Media-specific style sheets:  the '@media' rule</h2>