Markup block - Gen<None> - 20 - (0:0,0)
    Tag block - Gen<None> - 20 - (0:0,0)
        Markup span - Gen<Markup> - [<input] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:2
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[input];
        Markup block - Gen<Attr:value, value=@(6:0,6),@(17:0,17)> - 11 - (6:0,6)
            Markup span - Gen<None> - [ value=] - SpanEditHandler;Accepts:Any - (6:0,6) - Tokens:3
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Text;[value];
                SyntaxKind.Equals;[=];
            Markup block - Gen<DynAttr:@(13:0,13)> - 4 - (13:0,13)
                Expression block - Gen<Expr> - 4 - (13:0,13)
                    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (13:0,13) - Tokens:1
                        SyntaxKind.Transition;[@];
                    Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14 - (14:0,14) - Tokens:1
                        SyntaxKind.Identifier;[foo];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:Any - (17:0,17) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.CloseAngle;[>];
