Markup block - Gen<None> - 14 - (0:0,0)
    Tag block - Gen<TagHelper> - 14 - (0:0,0) - p - ptaghelper
        StartTagAndEndTag - <p class=> ... </p>
        class - DoubleQuotes
            Markup span - Gen<None> - [] - SpanEditHandler;Accepts:Any - (9:0,9) - Tokens:0
