Markup block - Gen<None> - 23 - (0:0,0)
    Markup span - Gen<Markup> - [<?xml version="1.0" ?>] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:12
        HtmlSymbolType.OpenAngle;[<];
        HtmlSymbolType.QuestionMark;[?];
        HtmlSymbolType.Text;[xml];
        HtmlSymbolType.WhiteSpace;[ ];
        HtmlSymbolType.Text;[version];
        HtmlSymbolType.Equals;[=];
        HtmlSymbolType.DoubleQuote;["];
        HtmlSymbolType.Text;[1.0];
        HtmlSymbolType.DoubleQuote;["];
        HtmlSymbolType.WhiteSpace;[ ];
        HtmlSymbolType.QuestionMark;[?];
        HtmlSymbolType.CloseAngle;[>];
    Markup span - Gen<Markup> - [ ] - SpanEditHandler;Accepts:None - (22:0,22) - Symbols:1
        HtmlSymbolType.WhiteSpace;[ ];
