<?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <head> <title>Testcase bug - ASSERTION: shouldn't use unconstrained widths anymore with nested marquees</title> </head> <body> <xul:hbox style="margin: 0 100%;"><span><xul:hbox style="margin: 0 100%;"></xul:hbox></span></xul:hbox> </body> </html>