Markup block - Gen<None> - 42 - (0:0,0)
    Tag block - Gen<TagHelper> - 42 - (0:0,0) - div - divTagHelper - catchAllTagHelper
        SelfClosing - <div style="" class="btn" catchAll="hi" />
        style - DoubleQuotes
            Markup block - Gen<None> - 0 - (0:0,0)
        class - DoubleQuotes
            Markup span - Gen<Markup> - [btn] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:1
                HtmlTokenType.Text;[btn];
        catchAll - DoubleQuotes
            Markup span - Gen<Markup> - [hi] - SpanEditHandler;Accepts:Any - (36:0,36) - Tokens:1
                HtmlTokenType.Text;[hi];
