[css-writing-modes] Fixed a validator issue

Author: kojiishi

css-writing-modes/Overview.bs

@@ -2250,8 +2250,8 @@ Page Flow: the page progression direction</h2>
 <h2 id="text-combine">
 Glyph Composition</h2>
 
-<h3 id="text-combine-upright">
 <span id="text-combine-horizontal"></span>
+<h3 id="text-combine-upright">
 Horizontal-in-Vertical Composition: the 'text-combine-upright' property</h3>
 
   <pre class='propdef'>

css-writing-modes/Overview.html

@@ -178,7 +178,7 @@ <h2 class="no-num no-toc no-ref heading settled heading" id=contents><span class
 	<li><a href=#page-direction><span class=secno>8</span> Page Flow: the page progression direction</a>
 	<li><a href=#text-combine><span class=secno>9</span> Glyph Composition</a>
 		<ul class=toc>
-		<li><a href=#text-combine-upright><span class=secno>9.1</span> <span id=text-combine-horizontal></span> Horizontal-in-Vertical Composition: the <span class=property data-link-type=propdesc title=text-combine-upright>text-combine-upright</span> property</a>
+		<li><a href=#text-combine-upright><span class=secno>9.1</span> Horizontal-in-Vertical Composition: the <span class=property data-link-type=propdesc title=text-combine-upright>text-combine-upright</span> property</a>
 			<ul class=toc>
 			<li><a href=#text-combine-runs><span class=secno>9.1.1</span> Text Run Rules</a>
 			<li><a href=#text-combine-layout><span class=secno>9.1.2</span> Layout Rules</a>
@@ -2212,8 +2212,8 @@ <h2 class="heading settled heading" data-level=8 id=page-direction><span class=s
 <h2 class="heading settled heading" data-level=9 id=text-combine><span class=secno>9 </span><span class=content>
 Glyph Composition</span><a class=self-link href=#text-combine></a></h2>
 
-<h3 class="heading settled heading" data-level=9.1 id=text-combine-upright><span class=secno>9.1 </span><span class=content>
 <span id=text-combine-horizontal></span>
+<h3 class="heading settled heading" data-level=9.1 id=text-combine-upright><span class=secno>9.1 </span><span class=content>
 Horizontal-in-Vertical Composition: the <a class=property data-link-type=propdesc href=#propdef-text-combine-upright title=text-combine-upright>text-combine-upright</a> property</span><a class=self-link href=#text-combine-upright></a></h3>
 
 <table class="definition propdef"><tr><th>Name:<td><dfn class=css-code data-dfn-type=property data-export="" id=propdef-text-combine-upright>text-combine-upright<a class=self-link href=#propdef-text-combine-upright></a></dfn><tr><th>Value:<td class=prod>none | all | [ digits &lt;integer&gt;? ]<tr><th>Initial:<td>none<tr><th>Applies to:<td>non-replaced inline elements<tr><th>Inherited:<td>yes<tr><th>Media:<td>visual<tr><th>Computed value:<td>specified keyword, plus integer if <a class=css data-link-type=maybe href=http://dev.w3.org/csswg/css-syntax-3/#digit title=digits>digits</a><tr><th>Canonical order:<td>n/a<tr><th>Percentages:<td>n/a<tr><th>Animatable:<td>no</table>