<!--[if IE 5]><div id="ie5" class="ie"><![endif]-->

<!--[if IE 5]><div id="ie5" class="ie"><![endif]-->


I open the demo index.html and i saw tags like below
<!--[if IE 5]><div id="ie5" class="ie"><![endif]-->
<!--[if IE 6]><div id="ie6" class="ie"><![endif]-->
<!--[if IE 7]><div id="ie7" class="ie"><![endif]-->
i cannot find any element ie5, ie7 associate with anything css ,js
file.