public IActionResult P()
        {
            if (tilda == null)
            {
                tilda = HttpContext.Request.PathBase;
            }
            ContentResult cr = new ContentResult()
            {
                ContentType = "text/html"
            };
            XElement html = new XElement("html",
                                         new XElement("head",
                                                      new XElement("meta", new XAttribute("charset", "utf-8")),
                                                      new XElement("link", new XAttribute("src", tilda + "/Styles.css")),
                                                      null),
                                         new XElement("body",
                                                      new XElement("img", new XAttribute("src", tilda + "/logo2.gif")),
                                                      new XElement("img", new XAttribute("src", tilda + "/logo1.jpg")),
                                                      new XElement("img", new XAttribute("src", tilda + "/tmp_foto.jpg")),
                                                      new XElement("img", new XAttribute("src", tilda + "/logo4.gif")),
                                                      new XElement("img", new XAttribute("src", tilda + "/tmp_foto.jpg")),
                                                      new XElement("div",

                                                                   new XElement("h1", $"Привет: {tilda}!"),
                                                                   null)));

            html       = Pager.ConstructPage(HttpContext);
            cr.Content = "<!DOCTYPE html>\n" + html.ToString(); // (SaveOptions.DisableFormatting);
            return(cr);
        }