<?xml version="1.0"?> <!DOCTYPE window> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" title="XUL Grid Test"> <grid> <columns> <column> <hbox /> <hbox /> </column> <column> <label value="Upper right" /> <hbox /> </column> </columns> <rows> <row> <hbox /> <hbox /> </row> <row> <textbox value="Lower left" /> <hbox /> </row> </rows> </grid> </window>