IF conditions are allowed in HTML and can be a very powerful way to quickly eliminate cross-browser issues. The IF IE set of conditionals is great to have on hand and can save hours of frustration when trying to wrap up projects quickly.
Here they are:
<p class="accent"> <!--[if IE]> According to the conditional comment this is IE<br /> <![endif]--> <!--[if IE 6]> According to the conditional comment this is IE 6<br /> <![endif]--> <!--[if IE 7]> According to the conditional comment this is IE 7<br /> <![endif]--> <!--[if IE 8]> According to the conditional comment this is IE 8<br /> <![endif]--> <!--[if IE 9]> According to the conditional comment this is IE 9<br /> <![endif]--> <!--[if gte IE 8]> According to the conditional comment this is IE 8 or higher<br /> <![endif]--> <!--[if lt IE 9]> According to the conditional comment this is IE lower than 9<br /> <![endif]--> <!--[if lte IE 7]> According to the conditional comment this is IE lower or equal to 7<br /> <![endif]--> <!--[if gt IE 6]> According to the conditional comment this is IE greater than 6<br /> <![endif]--> <!--[if !IE]> --> According to the conditional comment this is not IE<br /> <!-- <![endif]--> </p>
Note that they are only allowed in HTML and not in CSS. IF you want to load a whole separate CSS file for IE for one reason or another you can put the link tag into the conditional as follows:
<html>
<head>
<title></title>
<!--[if IE]>
<link rel='stylesheet' href='stylesheet.css' type='text/css' />
<![endif]-->
</head>
<body> ...
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