revising text on regions

Author: howcom

css3-gcpm/Overview.src.html

@@ -3165,10 +3165,27 @@ <h3>Selecting columns</h3>
 </pre>
 </div>
 
+<!--
 
 <h3>Turning columns into regions</h3>
 
 <p>A column that is moved from its natural position is called a region in this specification. Columns can be moved using floating or absolute positioning.
+-->
+
+<p>To underline the fact that columns are regions, the "region" keyword can also be used to select columns.
+
+
+<div class=example>
+<pre>
+div.chapter::region(3)       /* the 3rd region of the element */
+div.chapter::region(2n)      /* all even regions of the element */
+div.chapter::region(3+)      /* all regions but the 1st and 2nd */
+div.chapter::region(2,2)     /* second region on second page */
+div.chapter::region(*,2)     /* all regions on the second page */
+div.chapter::region(,2)      /* all columns on the second page */
+</pre>
+</div>
+
 
 <div class=example>
 <img alt="sample rendering" src=regions.png>