[css3-values]

http://samples.msdn.microsoft.com/ietestcenter/css3/valuesandunits/units-000.htm

The test uses the "old" representation 'vm' instead of the unit 'vmin' required by the specification.  IE recognizes this unit, standards compliant browsers do not.

See: http://dev.w3.org/csswg/css3-values/#viewport-relative-lengths

Suggest changing the test to use 'vmin' instead of 'vm'

Regards,

-Dave Tharp