How to add custom css classes to views exposed filters? I would like to add custom css classes to specific views exposed filters. Is this possible either by default or with some Drupal module?

UPDATE: Please, note that I am not referring to the views exposed filters form in general, but individual filters, eg. a class to a date filter, another class to an entity reference filter, etc.
Have you considered something like this? 

`.view-[viewname] .views-exposed-widgets`


You could use: 

theme_form_alter(&amp;$form, &amp;$form_state, $form_id)


Check for the view/form id,  and then add classes:

$form['#attributes']['class'][] = 'test';