static void Main(string[] args)
{
Console.WriteLine("Program start");
ControlGroup html = new ControlGroup("html");
ControlGroup body = new ControlGroup("body");
ControlGroup div = new ControlGroup("div");
html.AddControl(body);
body.AddControl(div);
div.AddControl(new Control("input", "text", "username"));
div.AddControl(new Control("br"));
StringBuilder sb = html.ParseHtml();
WriteCode(sb);
CreateHtmlFile(sb);
Console.ReadLine();
}
