Method1.cs

public static void Scrape()
{
    var scraper = new HtmlWeb();
    var page = scraper.Load("https://vainolo.z14.web.core.windows.net/WebScraping.html"); 
    var techniquesTitle = page.GetElementbyId("Techniques");
    var currNode = techniquesTitle.ParentNode.NextSibling;
    while(currNode.Name != "h2")
    {
        if(currNode.GetClasses().Contains("mw-headline"))
        {
            var headline = currNode.InnerText;
            Console.WriteLine(headline);
        }
        if(currNode.HasChildNodes)
        {
            currNode = currNode.FirstChild;
        }
        else if(currNode == currNode.ParentNode.LastChild)
        {
            while(currNode.ParentNode.NextSibling == null)
            {
                currNode = currNode.ParentNode;
            }
            currNode = currNode.ParentNode.NextSibling;
        }
        else
        {
            currNode = currNode.NextSibling;
        }
    }
}