<?xml version="1.0"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <hbox>
    <hbox flex="1" style="-moz-appearance: textfield;">
      <spacer style="padding: 50px;"/>
    </hbox>
    <spacer width="10000" flex="1"/>
  </hbox>
</window>
