RazorDocument - [0..11)::11 - [<th:myth />]
    MarkupBlock - [0..11)::11
        MarkupTagHelperElement - [0..11)::11 - th:myth[SelfClosing] - mythTagHelper
            MarkupTagHelperStartTag - [0..11)::11
                MarkupTextLiteral - [0..11)::11 - [<th:myth />] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    Text;[th:myth];
                    Whitespace;[ ];
                    ForwardSlash;[/];
                    CloseAngle;[>];
