public static void Main()
HtmlDocument doc = new HtmlDocument();
<html><head><meta http-equiv=""Content-Type"" content=""text/html; charset=UTF-8""></head><body><certidao>
foreach (HtmlNode certidao in doc.DocumentNode.SelectNodes("//certidao")) foreach (HtmlNode subtag in certidao.SelectNodes("//subtag")) Console.WriteLine(subtag.InnerText);
