RazorDocument - [0..36)::36 - [<foo><!DOCTYPE hello="world" ></foo>]
    MarkupBlock - [0..36)::36
        MarkupTagBlock - [0..5)::5 - [<foo>]
            MarkupTextLiteral - [0..5)::5 - [<foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[foo];
                CloseAngle;[>];
        MarkupTextLiteral - [5..30)::25 - [<!DOCTYPE hello="world" >] - Gen<Markup> - SpanEditHandler;Accepts:Any
            OpenAngle;[<];
            Bang;[!];
            Text;[DOCTYPE];
            Whitespace;[ ];
            Text;[hello];
            Equals;[=];
            DoubleQuote;["];
            Text;[world];
            DoubleQuote;["];
            Whitespace;[ ];
            CloseAngle;[>];
        MarkupTagBlock - [30..36)::6 - [</foo>]
            MarkupTextLiteral - [30..36)::6 - [</foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                ForwardSlash;[/];
                Text;[foo];
                CloseAngle;[>];
