refining page/column selection

Author: howcom

css3-gcpm/Overview.src.html

@@ -2898,16 +2898,20 @@ <h2>The 'first-page' pseudo-element</h2>
 
 <h2>Selecting columns and pages</h2>
 
+<p class=issue>This is sketchy.
+
 <p>Pseudo-elements are introduced to apply styling to the part of an
 element that ends up on a certain page of column of that element. The
 'column(n)' pseudo-element selects columns, and the 'page(n)'
 psedo-element select columns.
 
 <div class=example>
 <pre>
-div.chapter:column(3)           /* the third column of the element */
-div.chapter:column(2n)          /* all even columns */
-div.chapter:column(1):page(2)   /* first column on page 2 */
+div.chapter::column(3)           /* the third column of the element */
+div.chapter::column(2n)          /* all even columns of the element */
+div.chapter::page(2)             /* second page of the element */
+div.chapter::page-column(2,2)    /* second column on second page */
+div.chapter::page(2)::column(2)  /* second column, but only if it appears on the second page */
 </pre>
 </div>