<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>

<window id="example-window" title="Example 3.3.1"
        xmlns:html="http://www.w3.org/1999/xhtml"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<hbox flex="1">
  <button label="Left" style="min-width: 100px;" flex="1"/>
  <spacer flex="1"/>
  <button label="Right" style="min-width: 100px;" flex="1"/>
</hbox>


</window>

