Markup block - Gen<None> - 39 - (0:0,0)
    Tag block - Gen<TagHelper> - 39 - (0:0,0) - p - PTagHelper1 - PTagHelper2
        StartTagAndEndTag - <p> ... </p>
        Tag block - Gen<TagHelper> - 28 - (3:0,3) - strong - StrongTagHelper
            StartTagAndEndTag - <strong> ... </strong>
            Markup span - Gen<Markup> - [Hello World] - SpanEditHandler;Accepts:Any - (11:0,11) - Tokens:3
                HtmlTokenType.Text;[Hello];
                HtmlTokenType.WhiteSpace;[ ];
                HtmlTokenType.Text;[World];
        Tag block - Gen<TagHelper> - 4 - (31:0,31) - br - BRTagHelper
            StartTagOnly - <br>
