Markup block - Gen<None> - 73 - (0:0,0)
    Tag block - Gen<TagHelper> - 73 - (0:0,0) - person - PersonTagHelper
        SelfClosing - <person age="12" birthday="DateTime.Now" name="Time: @@ @DateTime.Now" />
        age - DoubleQuotes
            Code span - Gen<Expr> - [12] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (13:0,13) - Tokens:1
                HtmlTokenType.Text;[12];
        birthday - DoubleQuotes
            Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:AnyExceptNewline;ImplicitExpression[ATD];K14 - (27:0,27) - Tokens:1
                HtmlTokenType.Text;[DateTime.Now];
        name - DoubleQuotes
            Markup block - Gen<None> - 22 - (47:0,47)
                Markup span - Gen<Markup> - [Time:] - SpanEditHandler;Accepts:Any - (47:0,47) - Tokens:1
                    HtmlTokenType.Text;[Time:];
                Markup block - Gen<None> - 3 - (52:0,52)
                    Markup span - Gen<Markup> - [ @] - SpanEditHandler;Accepts:None - (52:0,52) - Tokens:2
                        HtmlTokenType.WhiteSpace;[ ];
                        HtmlTokenType.Transition;[@];
                    Markup span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (54:0,54) - Tokens:1
                        HtmlTokenType.Transition;[@];
                Markup block - Gen<None> - 14 - (55:0,55)
                    Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:Any - (55:0,55) - Tokens:1
                        HtmlTokenType.WhiteSpace;[ ];
                    Expression block - Gen<Expr> - 13 - (56:0,56)
                        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (56:0,56) - Tokens:1
                            CSharpTokenType.Transition;[@];
                        Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (57:0,57) - Tokens:3
                            CSharpTokenType.Identifier;[DateTime];
                            CSharpTokenType.Dot;[.];
                            CSharpTokenType.Identifier;[Now];
