How add additional css classes to description field in webform component? I want to add additional CSS classes to webform component description field.

in default mode, this item is wrapped inside a div element with "description" class like below:

&lt;div class="description"&gt;here is description text&lt;/div&gt;


Now I want to add extra CSS classes beside description.

How can I do this? via a module and form alter operation or via theme functions hook?

Please guide me.
you can do this by using jquery on ready do this something like
jQuery(document).ready(function() {
         jQuery('#YOUR_FORM_ID .description').addClass('new-desc-class');
});