[css-cascade] Markup typo.

Author: tabatkins

css-cascade/Overview.html

@@ -278,10 +278,6 @@ <h2 id=at-import><span class=secno>2. </span> Importing style sheets: the
   <pre class=prod><dfn
    id=ltimport-rule>&lt;import-rule></dfn> = @import [ &lt;url> | &lt;string> ] &lt;media-query-list>? ;</pre>
 
-  <pre>
-
-	</pre>
-
   <p> If a <var>&lt;string></var> is provided, it must be interpreted as a
    url with the same value.
 

css-cascade/Overview.src.html

@@ -101,7 +101,7 @@ <h2 id="at-import">
 		or else the ''@import'' rule is invalid.
 		The syntax of ''@import'' is:
 
-	<pre class='prod'><dfn>&lt;import-rule></dfn> = @import [ &lt;url> | &lt;string> ] &lt;media-query-list>? ;<pre>
+	<pre class='prod'><dfn>&lt;import-rule></dfn> = @import [ &lt;url> | &lt;string> ] &lt;media-query-list>? ;</pre>
 
 	<p>
 		If a <var>&lt;string></var> is provided,