Tweak example 4.

Author: tabatkins

css3-hierarchies/Overview.html

@@ -309,10 +309,10 @@ <h2 id=nesting-selector><span class=secno>2. </span> The &amp; Selector</h2>
    <p>...produces the same results as the following CSS:
 
    <pre>
-div .keyword {color:red;}
-div .constant {color:red;}
-p .keyword {color:red;}
-p .constant {color:red;}</pre>
+div .keyword, div .constant, p .keyword, p .constant {
+	color:red;
+}
+	</pre>
   </div>
 
   <p>Multiple style rules can be embedded within a style rule. Style rules

css3-hierarchies/Overview.src.html

@@ -192,10 +192,9 @@ <h2 id="nesting-selector">
 		<p>...produces the same results as the following CSS:
 
 		<pre>
-div .keyword {color:red;}
-div .constant {color:red;}
-p .keyword {color:red;}
-p .constant {color:red;}</pre>
+div .keyword, div .constant, p .keyword, p .constant {
+	color:red;
+}
 	</div>
 
 	<p>Multiple style rules can be embedded within a style rule. Style rules can be embedded arbitrarily deeply. Embedded style rules and properties can both appear in a single declaration block, and in any order.</p>