function bp_group_member_css_class() {
	global $members_template;

	if ( $members_template->member->is_banned ) {

		/**
		 * Filters the class to add to the HTML if member is banned.
		 *
		 * @since 1.2.6
		 *
		 * @param string $value HTML class to add.
		 */
		echo apply_filters( 'bp_group_member_css_class', 'banned-user' );
	}
}