Let’s say you want to have a suckerfish dropdown, or maybe you just want to add a cool hover on a div, well in some browsers thats not allowed to be done with pure css, hence use this simple technique and you will have cross browser hover with any two class you want.
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function(){
// jQuery Code Here
});
</script>