css - Rule for IE. Not working in IE 10 -

i specified rule ie versios, not working reason.

<!--[if ie]> <style type="text/css"> #topmenu li.fisrt {     padding: 5px 5px !important;     font: 13px/43px sans-serif !important;     text-transform: uppercase; } </style> <![endif]--> 

from msdn:

support conditional comments has been removed in internet explorer 10 standards , quirks modes improved interoperability , compliance html5

the idea ie10 has better standards support older ie versions , there should no longer need conditionally target it.