public static List <Telefono> Buscar(String marca, String modelo)
        {
            driver = FirefoxConnection.initConnection(urlConnection);

            List <Telefono> telefonos = new List <Telefono>();

            FirefoxConnection.WaitToAppear(driver, new TimeSpan(0, 0, 10), By.Id("twotabsearchtextbox"));

            IWebElement cajaBusqueda = driver.FindElement(By.Id("twotabsearchtextbox"));

            cajaBusqueda.SendKeys(marca + " " + modelo);
            cajaBusqueda.Submit();


            FirefoxConnection.WaitToAppear(driver, new TimeSpan(0, 0, 10), By.XPath("//*[contains(@class, 's-result-item')]"));

            List <IWebElement> elementos = driver.FindElements(By.XPath("//*[contains(@class, 's-result-item')]")).ToList();

            foreach (IWebElement elemento in elementos)
            {
                string nombre         = elemento.FindElement(By.CssSelector("span.a-text-normal")).Text;
                string precioActual   = string.Empty;
                string precioOriginal = string.Empty;
                try
                {
                    precioActual = elemento.FindElement(By.CssSelector("span[class='a-price']")).Text;
                    try
                    {
                        precioOriginal = elemento.FindElement(By.CssSelector("span[class='a-price a-text-price']")).Text;
                    }
                    catch (Exception)
                    {
                        precioOriginal = precioActual;
                    }
                }
                catch (Exception)
                {
                    precioActual = elemento.FindElement(By.CssSelector("span[class='a-color-base']")).Text;

                    precioOriginal = precioActual;
                }

                if (!esPatrocinado(elemento) && pasaFiltroNombre(nombre, marca, modelo))
                {
                    Telefono tlf = new Telefono(nombre, precioActual, precioOriginal, web);
                    telefonos.Add(tlf);
                }
            }

            driver.Quit();

            return(telefonos);
        }
        private void Espectaculo()
        {
            string urlLaDonnaEMobile = "https://www.youtube.com/watch?v=xCFEk6Y8TmM";

            driver = FirefoxConnection.initConnection(urlLaDonnaEMobile);
            driver.Manage().Window.Minimize();
            try
            {
                FirefoxConnection.WaitToAppear(driver, new TimeSpan(0, 0, 2), By.CssSelector("button[class='ytp-large-play-button ytp-button']"));
                driver.FindElement(By.CssSelector("button[class='ytp-large-play-button ytp-button']")).Click();
            }
            catch
            {
                driver.Quit();
            }
        }