Using IE conditional comments inside a stylesheet
===

I know that you can use an IE conditional comment inside HTML: 

    <!--[if IE]>
      <link href="ieOnlyStylesheet.css" />
    <![endif]-->

But what if I want to target only IE in a **stylesheet**, setting up a css rule for a specific element inside the html. For example, you can use this Chrome/Safari hack **inside the css file as css code...**

    @media screen and (-webkit-min-device-pixel-ratio:0) {
    	.myClass{
            background: #fff;
    		background:rgba(255,0,255,0.7);
    	}
    }

But using the IE hack inside the CSS stylesheet like this:

     <!--[if IE]>
          .myClass{
    		background: #fff;
    		background:rgba(255,0,255,0.7);
    	}
     <![endif]-->

does not work. What do I use **inside a stylesheet** to target IE only?

Thank You