2 <window xmlns=
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
3 xmlns:
html=
"http://www.w3.org/1999/xhtml">
6 window { -moz-box-align: start; -moz-box-pack: start }
7 hbox { background: yellow }
8 vbox { background: blue; width:
15px; min-height:
15px }
12 <hbox><vbox /><label value=
"a b c d e f" /></hbox>