Litte trick to target IE10 only for CSS stuff. You should mostly avoid this, but it is sometimes necessary.
In Head:
<!-- [if !IE]><!--> <script> if (/*@cc_on!@*/false && document.documentMode === 10) { document.documentElement.className+=' ie10'; } </script> <!--<![endif]-->
In CSS:
html.ie10 { … }