<?xml version="1.0" encoding="ISO-8859-1" ?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="example-window" title="Exemple 3.1.1" xmlns:html="http://www.w3.org/1999/xhtml" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <vbox> <button id="yes" label="Oui"/> <button id="no" label="Non"/> <button id="maybe" label="Peut-ĂȘtre"/> </vbox> </window>