RazorDocument - [0..16)::16 - [<strong </strong]
    MarkupBlock - [0..16)::16
        MarkupTagHelperElement - [0..16)::16 - strong[StartTagAndEndTag] - strongtaghelper
            MarkupTagHelperStartTag - [0..8)::8
                MarkupTextLiteral - [0..8)::8 - [<strong ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    Text;[strong];
                    Whitespace;[ ];
            MarkupTagHelperEndTag - [8..16)::8
                MarkupTextLiteral - [8..16)::8 - [</strong] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    ForwardSlash;[/];
                    Text;[strong];
