public static string toHtml(this Img img)
{
var sw = new StringWriter();
var writer = new HtmlTextWriter(sw);
writer.WriteBeginTag("img");
writer.WriteAttribute("src", img.Href);
writer.writeClasses(img);
writer.writeStyles(img);
writer.writeAttributes(img, "href");
writer.Write("/>");
return sw.ToString();
}
