Use Title: meta instead of explicit <h1>

Author: tantek

css-box-3/Overview.bs

@@ -47,15 +47,14 @@
 <link rel=contents href="#contents">
 <link rel=index href="#index">
 
-<h1>CSS basic box model</h1>
-
     <!-- TODO: cross-references aren't automatically generated by
     Bikeshed. Is there a better way than to add <a> around every
     <span> and <em>?  -->
 
     <!-- TODO: bibliography still doesn't show the dated specs. -->
 
 <pre class=metadata>
+Title: CSS basic box model
 Shortname: css-box
 Level: 3
 Status: ED