<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Content Appended in Pagination before ::after</title> <style type="text/css"> body { font-size: 16px; } #colset { height: 200px; width: 450px; -moz-column-width: 150px; -moz-column-gap: 0; border: 3px solid silver; } #shift { height: 0; } #overflow { height: 500px; } </style> </head> <body onload="document.getElementById('colset').insertBefore(document.createTextNode('This must be in the first column.'), document.getElementById('x'))"> <div id="colset"> <div id="shift"> <div id="overflow"></div> </div ><div id="x"> </div> </div> </body> </html>