<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" xmlns:html="http://www.w3.org/1999/xhtml"> <bindings xmlns="http://www.mozilla.org/xbl"> <binding id="a" inheritstyle="false"> <content> <style xmlns="http://www.w3.org/1999/xhtml"> window::after, box::after, bindings::after { content:"m"; float:right;} </style> </content> </binding> </bindings> <box style="-moz-binding:url(crash1.xul);overflow: scroll;"/> </window>