BuddyPress.org

Hi,

Im working in new theme, and i want to add some new css class to the buttons of buddypress
( for example, join group, leave group….)

is there a hook or action that help to add css class to button ?

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Updated!

i think found it, i was use a filter

<div class="bbcode_code">
<div class="bbcode_code_head">Code:</div>
<div class="bbcode_code_body">function bp_add_link_class_get_group_join_button( $button ) {
	$button['link_class'] .= 'btn btn-mini';
	return $button;
}
add_filter( 'bp_get_group_join_button', 'bp_add_link_class_get_group_join_button' );</div>
</div>