[css-syntax] Move code example to its own line.

Author: SimonSapin

css-syntax/Overview.html

@@ -54,7 +54,7 @@
 </p>
   <h1 class="p-name no-ref" id=title>CSS Syntax Module Level 3</h1>
   <h2 class="no-num no-toc no-ref heading settled heading" id=subtitle><span class=content>Editor’s Draft,
-    <span class=dt-updated><span class=value-title title=20140127>27 January 2014</span></span></span></h2>
+    <span class=dt-updated><span class=value-title title=20140201>1 February 2014</span></span></span></h2>
   <div data-fill-with=spec-metadata><dl><dt>This version:<dd><a class=u-url href=http://dev.w3.org/csswg/css-syntax/>http://dev.w3.org/csswg/css-syntax/</a><dt>Latest version:<dd><a href=http://www.w3.org/TR/css-syntax-3/>http://www.w3.org/TR/css-syntax-3/</a><dt>Editor’s Draft:<dd><a href=http://dev.w3.org/csswg/css-syntax/>http://dev.w3.org/csswg/css-syntax/</a><dt>Previous Versions:<dd><a href=http://www.w3.org/TR/2013/WD-css-syntax-3-20131105/ rel=previous>http://www.w3.org/TR/2013/WD-css-syntax-3-20131105/</a><dd><a href=http://www.w3.org/TR/2013/WD-css-syntax-3-20130919/ rel=previous>http://www.w3.org/TR/2013/WD-css-syntax-3-20130919/</a>
     <dt>Feedback:</dt>
         <dd><a href="mailto:www-style@w3.org?subject=%5Bcss-syntax%5D%20feedback">www-style@w3.org</a>
@@ -520,8 +520,9 @@ <h3 class="heading settled heading" data-level=3.2 id=input-byte-stream><span cl
 
 <p>		If neither of these options are available,
 		authors should begin the stylesheet with a UTF-8 BOM
-		or the exact characters <code>@charset "utf-8";</code>.
-	</div>
+		or the exact characters
+
+<pre>@charset "utf-8";</pre>	</div>
 
 <h3 class="heading settled heading" data-level=3.3 id=environment-encoding><span class=secno>3.3 </span><span class=content>
 Environment encoding</span><a class=self-link href=#environment-encoding></a></h3>

css-syntax/Overview.src.html

@@ -358,7 +358,9 @@ <h3 id="input-byte-stream">
 
 		If neither of these options are available,
 		authors should begin the stylesheet with a UTF-8 BOM
-		or the exact characters <code>@charset "utf-8";</code>.
+		or the exact characters
+
+		<pre>@charset "utf-8";</pre>
 	</div>
 
 <h3 id="environment-encoding">