Markup block - Gen<None> - 47 - (0:0,0)
    Tag block - Gen<TagHelper> - 47 - (0:0,0) - th:myth - mythTagHelper
        StartTagAndEndTag - <th:myth class="btn"> ... </th:myth>
        class - DoubleQuotes
            Markup span - Gen<Markup> - [btn] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:1
                HtmlTokenType.Text;[btn];
        Markup span - Gen<Markup> - [words and spaces] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:5
            HtmlTokenType.Text;[words];
            HtmlTokenType.WhiteSpace;[ ];
            HtmlTokenType.Text;[and];
            HtmlTokenType.WhiteSpace;[ ];
            HtmlTokenType.Text;[spaces];
