Add replaced elements to monolithic elements section

Author: fantasai

css3-break/Overview.html

@@ -747,9 +747,10 @@ <h3 id=possible-breaks><span class=secno>4.1. </span> Possible Break Points</h3>
    the page, and not all the content fits, the UA may break anywhere in order
    to avoid losing content off the edge of the page.
 
-  <p> The UA is not required to fragment the contents of scrollable elements
-   e.g. those with &lsquo;<code class=property>overflow</code>&rsquo; set to
-   &lsquo;<code class=css>auto</code>&rsquo; or &lsquo;<code
+  <p id=monolithic> The UA is not required to fragment the contents of
+   replaced or scrollable elements e.g. those with &lsquo;<code
+   class=property>overflow</code>&rsquo; set to &lsquo;<code
+   class=css>auto</code>&rsquo; or &lsquo;<code
    class=css>scroll</code>&rsquo;, and may instead either slice the element's
    graphical representation as necessary to fragment it or treat its box as
    monolithic (unbreakable) and overflow the fragmenter. In both cases it

css3-break/Overview.src.html

@@ -522,8 +522,8 @@ <h3 id="possible-breaks">
     of the page, and not all the content fits, the UA may break anywhere
     in order to avoid losing content off the edge of the page.
   </p>
-  <p>
-    The UA is not required to fragment the contents of scrollable elements
+  <p id=monolithic>
+    The UA is not required to fragment the contents of replaced or scrollable elements
     e.g. those with 'overflow' set to ''auto'' or ''scroll'', and may instead
     either slice the element's graphical representation as necessary to fragment it
     or treat its box as monolithic (unbreakable) and overflow the fragmenter.