Markup block - Gen<None> - 11 - (0:0,0)
    Tag block - Gen<None> - 1 - (0:0,0)
        Markup span - Gen<Markup> - [<] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:1
            HtmlTokenType.OpenAngle;[<];
    Tag block - Gen<None> - 1 - (1:0,1)
        Markup span - Gen<Markup> - [<] - SpanEditHandler;Accepts:Any - (1:0,1) - Tokens:1
            HtmlTokenType.OpenAngle;[<];
    Tag block - Gen<TagHelper> - 9 - (2:0,2) - p - ptaghelper
        StartTagAndEndTag - <p> ... </p>
        Markup span - Gen<Markup> - [>>] - SpanEditHandler;Accepts:Any - (5:0,5) - Tokens:2
            HtmlTokenType.CloseAngle;[>];
            HtmlTokenType.CloseAngle;[>];
