jQuery: Append a CSS class to any item or last item

<script type="text/javascript">
	jQuery("p:last").addClass(" last");
</script>

It’s important to note that this method does not replace a class. It simply adds the class, appending it to any which may already be assigned to the elements.

More than one class may be added at a time, separated by a space, to the set of matched elements, like so:

$("p").addClass("myClass yourClass");


This method is often used with .removeClass() to switch elements’ classes from one to another, like so:

$("p").removeClass("myClass noClass").addClass("yourClass");

Here, the myClass and noClass classes are removed from all paragraphs, while yourClass is added.

Note:
Add this code before tag

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