Adding/Removing Class on Hover

Adding/Removing Class on Hover

<script>
jQuery(document).ready(function($){
$('#elm').hover(
       function(){ $(this).addClass('hover') },
       function(){ $(this).removeClass('hover') }
)
});
</script>
<style>
.hover {font-size:33px;}
</style>
<div id="elm">test</div>