RazorDocument - [0..19)::19 - [<th:myth></th:myth>]
    MarkupBlock - [0..19)::19
        MarkupTagHelperElement - [0..19)::19 - th:myth[StartTagAndEndTag] - mythTagHelper
            MarkupTagHelperStartTag - [0..9)::9
                MarkupTextLiteral - [0..9)::9 - [<th:myth>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    Text;[th:myth];
                    CloseAngle;[>];
            MarkupTagHelperEndTag - [9..19)::10
                MarkupTextLiteral - [9..19)::10 - [</th:myth>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    ForwardSlash;[/];
                    Text;[th:myth];
                    CloseAngle;[>];
