[css3-ui] Fix markup in example 6

The live markup did not match the one in the descriptive
prose and the sample rendering.

Author: frivoal

css-ui/Overview.bs

@@ -826,8 +826,8 @@ Fourth, a box with a nested paragraph demonstrating anonymous block boxes equiva
 
 <td>
 <div style="width:3.1em; border:solid .1em black; margin:1em 0; padding:.2em;  font-family:Helvetica,sans-serif; line-height:1.1; overflow:hidden;text-overflow:ellipsis;">NESTED
- <p>PARAGRAPH
-WON'T ELLIPSE.</p></div>
+ <p>PARAGRAPH</p>
+WON'T ELLIPSE.</div>
 </td>
 
 </tr>

css-ui/Overview.html

@@ -2364,7 +2364,7 @@ <h4 class="no-num no-toc heading settled" id="ellipsis-interaction"><span class=
 </ul>
 
 
-   <div class="example" id="example-e64f7004"><a class="self-link" href="#example-e64f7004"></a>
+   <div class="example" id="example-4d792064"><a class="self-link" href="#example-4d792064"></a>
     <p style="display:none">Example(s):
 </p>
     <h4 class="no-num no-toc heading settled" id="text-overflow-examples"><span class="content">text-overflow examples</span><a class="self-link" href="#text-overflow-examples"></a></h4>
@@ -2491,8 +2491,8 @@ <h4 class="no-num no-toc heading settled" id="text-overflow-examples"><span clas
 
         <div style="width:3.1em; border:solid .1em black; margin:1em 0; padding:.2em;  font-family:Helvetica,sans-serif; line-height:1.1; overflow:hidden;text-overflow:ellipsis;">NESTED
 
-         <p>PARAGRAPH
-WON’T ELLIPSE.</p></div>
+         <p>PARAGRAPH</p>
+WON’T ELLIPSE.</div>