public static function element($name) {
        if (isset(static::$html5[$name])) {
            return static::$html5[$name];
        }
        if (isset(static::$svg[$name])) {
            return static::$svg[$name];
        }
        if (isset(static::$mathml[$name])) {
            return static::$mathml[$name];
        }

        return false;
    }