<!DOCTYPE html> <html> <head> <style type="text/css"> div { position: absolute; height: 10px; width: 10px; } </style> </head> <body onload="document.getElementById('c').style.counterIncrement = 'z';"> <div style="-moz-column-count: 2;"><div id="c" style="white-space: pre;"> <div> <div></div></div></div></div> </body> </html>