RazorDocument - [0..34)::34 - [<person birthday="DateTime.Now" />]
    MarkupBlock - [0..34)::34
        MarkupTagHelperElement - [0..34)::34 - person[SelfClosing] - PersonTagHelper
            MarkupTagHelperStartTag - [0..34)::34 - [<person birthday="DateTime.Now" />] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[person];
                MarkupTagHelperAttribute - [7..31)::24 - birthday - DoubleQuotes - Bound - [ birthday="DateTime.Now"]
                    MarkupTextLiteral - [7..8)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Whitespace;[ ];
                    MarkupTextLiteral - [8..16)::8 - [birthday] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Text;[birthday];
                    Equals;[=];
                    MarkupTextLiteral - [17..18)::1 - ["] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        DoubleQuote;["];
                    MarkupTagHelperAttributeValue - [18..30)::12
                        CSharpExpressionLiteral - [18..30)::12 - [DateTime.Now] - Gen<None> - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14
                            Text;[DateTime.Now];
                    MarkupTextLiteral - [30..31)::1 - ["] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        DoubleQuote;["];
                MarkupMiscAttributeContent - [31..32)::1
                    MarkupTextLiteral - [31..32)::1 - [ ] - Gen<Markup> - SpanEditHandler;Accepts:Any
                        Whitespace;[ ];
                ForwardSlash;[/];
                CloseAngle;[>];
