multiple css classes

This would make this plugin way handier!

As it stands thanks though.

You could add the ability for multiple classes reasonably simply. I’ve just added the following code to the update method in the widget class if it helps anyone.

public function update( $new_instance, $old_instance ) {
        $instance['title']      = sanitize_text_field( $new_instance['title'] );
        $instance['nav_menu']   = (int) $new_instance['nav_menu'];
        $instance['title_url']  = esc_html( $new_instance['title_url'] );

        /*
         * Multiple classes fix
         */
        $output     = '';
        $classes    = explode(" ", $new_instance['menu_class']);
        foreach($classes as $class) {
            $output .= sanitize_html_class($class) . ' ';
        }
        $output = rtrim($output, ' ');
        $instance['menu_class'] = $output;

        return $instance;
}