Method2.cs

public static void Scrape()
{
    var scraper = new HtmlWeb();
    var page = scraper.Load("https://vainolo.z14.web.core.windows.net/WebScraping.html");
    var nodes = page.DocumentNode.Descendants().SkipWhile(e => e.Id != "Techniques").Skip(1).TakeWhile(e => e.Name != "h2");

    foreach (var currNode in nodes)
    {
         if(currNode.GetClasses().Contains("mw-headline"))
        {
            var headline = currNode.InnerText;
            Console.WriteLine(headline);
        }
    }
}