The renderer appears to ignore that attribute, so it looks like a bug. I suggest you file a jira issue. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995564#3995564 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3995564