Markup block - Gen<None> - 77 - (0:0,0)
    Tag block - Gen<TagHelper> - 77 - (0:0,0) - person - PersonTagHelper
        SelfClosing - <person age="@@@(11+1)" birthday="DateTime.Now" name="Time: @DateTime.Now" />
        age - DoubleQuotes
            Markup block - Gen<None> - 9 - (13:0,13)
                Markup block - Gen<None> - 2 - (13:0,13)
                    Code span - Gen<Expr> - [@] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (13:0,13) - Tokens:1
                        HtmlTokenType.Transition;[@];
                    Code span - Gen<None> - [@] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (14:0,14) - Tokens:1
                        HtmlTokenType.Transition;[@];
                Markup block - Gen<None> - 7 - (15:0,15)
                    Code span - Gen<Expr> - [] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (15:0,15) - Tokens:1
                        HtmlTokenType.Unknown;[];
                    Expression block - Gen<Expr> - 7 - (15:0,15)
                        Code span - Gen<Expr> - [@] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (15:0,15) - Tokens:1
                            CSharpTokenType.Transition;[@];
                        Code span - Gen<Expr> - [(] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (16:0,16) - Tokens:1
                            CSharpTokenType.LeftParenthesis;[(];
                        Code span - Gen<Expr> - [11+1] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (17:0,17) - Tokens:3
                            CSharpTokenType.IntegerLiteral;[11];
                            CSharpTokenType.Plus;[+];
                            CSharpTokenType.IntegerLiteral;[1];
                        Code span - Gen<Expr> - [)] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (21:0,21) - Tokens:1
                            CSharpTokenType.RightParenthesis;[)];
        birthday - DoubleQuotes
            Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (34:0,34) - Tokens:1
                HtmlTokenType.Text;[DateTime.Now];
        name - DoubleQuotes
            Markup block - Gen<None> - 19 - (54:0,54)
                Markup span - Gen<Markup> - [Time:] - SpanEditHandler;Accepts:Any - (54:0,54) - Tokens:1
                    HtmlTokenType.Text;[Time:];
                Markup block - Gen<None> - 14 - (59:0,59)
                    Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:Any - (59:0,59) - Tokens:1
                        HtmlTokenType.WhiteSpace;[ ];
                    Expression block - Gen<Expr> - 13 - (60:0,60)
                        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (60:0,60) - Tokens:1
                            CSharpTokenType.Transition;[@];
                        Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (61:0,61) - Tokens:3
                            CSharpTokenType.Identifier;[DateTime];
                            CSharpTokenType.Dot;[.];
                            CSharpTokenType.Identifier;[Now];
