2 <window xmlns=
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
3 <style xmlns=
"http://www.w3.org/1999/xhtml">
5 menulist, menuitem, label { font: Menu }
6 #measurelabel { color: transparent }
13 <menuitem value=
"1" label=
"long item" />
14 <menuitem value=
"2" label=
"short" />
19 <label id=
"measurelabel" value=
"long item" />
20 <!-- cover up the right edge of the above -->
21 <box flex=
"1" style=
"background: white" />