There might come a requirement where you will want to switch the styling of the html elements according to browser and mainly IE. For example, to make your view IE8 aware you can define a class on the body with IE’s conditional comments like:

<!--[if IE 8]><body class="ie8"><![endif]-->
<!--[if !IE 8]>--><body><!--<![endif]-->
    <div>
        This is a sample text which appears blue in IE8 and red in other browsers.
        <div>
</body>

and then you can define the styling like this:

div{
    background-color:#bff;
}
.ie8 div{
    background-color:#ffb;    
}

Now with above changes done, the background color for the div on IE8 in the body will be #FFB and for other browser the background color will be #BFF.