<title>Page Title</title>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
var ctx = BrowsingContext.New(Configuration.Default.WithCss());
var htmlParser = ctx.GetService<AngleSharp.Html.Parser.IHtmlParser>();
var doc = htmlParser.ParseDocument(htmlContent);
Console.WriteLine(doc.Body.GetInnerText());