Markup block - Gen<None> - 33 - (0:0,0)
    Tag block - Gen<TagHelper> - 33 - (0:0,0) - p - pTagHelper
        SelfClosing - <p notRequired="a" class="btn" />
        notRequired - DoubleQuotes
            Markup span - Gen<Markup> - [a] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:1
                HtmlTokenType.Text;[a];
        class - DoubleQuotes
            Markup span - Gen<Markup> - [btn] - SpanEditHandler;Accepts:Any - (26:0,26) - Tokens:1
                HtmlTokenType.Text;[btn];
