Markup block - Gen<None> - 37 - (0:0,0)
    Tag block - Gen<TagHelper> - 37 - (0:0,0) - person - PersonTagHelper
        SelfClosing - <person name="Time: @DateTime.Now" />
        name - DoubleQuotes
            Markup block - Gen<None> - 19 - (14:0,14)
                Markup span - Gen<Markup> - [Time:] - SpanEditHandler;Accepts:Any - (14:0,14) - Tokens:1
                    HtmlTokenType.Text;[Time:];
                Markup block - Gen<None> - 14 - (19:0,19)
                    Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:Any - (19:0,19) - Tokens:1
                        HtmlTokenType.WhiteSpace;[ ];
                    Expression block - Gen<Expr> - 13 - (20:0,20)
                        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (20:0,20) - Tokens:1
                            CSharpTokenType.Transition;[@];
                        Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (21:0,21) - Tokens:3
                            CSharpTokenType.Identifier;[DateTime];
                            CSharpTokenType.Dot;[.];
                            CSharpTokenType.Identifier;[Now];
