public function registerStyles()
    {
        wp_register_style(
            'cuztom-jquery-ui',
            '//ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/themes/base/jquery-ui.css',
            false,
            self::$version,
            'screen'
        );

        wp_register_style(
            'cuztom',
            self::$url.'/assets/css/cuztom.min.css',
            false,
            self::$version,
            'screen'
        );

        // Do
        do_action('cuztom_register_styles');
    }