Markup block - Gen<None> - 17 - (0:0,0)
    Tag block - Gen<None> - 17 - (0:0,0)
        Markup span - Gen<Markup> - [<] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:1
            HtmlTokenType.OpenAngle;[<];
        MetaCode span - Gen<None> - [!] - SpanEditHandler;Accepts:None - (1:0,1) - Tokens:1
            HtmlTokenType.Bang;[!];
        Markup span - Gen<Markup> - [p] - SpanEditHandler;Accepts:Any - (2:0,2) - Tokens:1
            HtmlTokenType.Text;[p];
        Markup block - Gen<Attr:class, class="@(3:0,3),"@(14:0,14)> - 12 - (3:0,3)
            Markup span - Gen<None> - [ class="] - SpanEditHandler;Accepts:Any - (3:0,3) - Tokens:4
                HtmlTokenType.WhiteSpace;[ ];
                HtmlTokenType.Text;[class];
                HtmlTokenType.Equals;[=];
                HtmlTokenType.DoubleQuote;["];
            Markup span - Gen<LitAttr:@(11:0,11)> - [btn] - SpanEditHandler;Accepts:Any - (11:0,11) - Tokens:1
                HtmlTokenType.Text;[btn];
            Markup span - Gen<None> - ["] - SpanEditHandler;Accepts:Any - (14:0,14) - Tokens:1
                HtmlTokenType.DoubleQuote;["];
        Markup span - Gen<Markup> - [ /] - SpanEditHandler;Accepts:Any - (15:0,15) - Tokens:2
            HtmlTokenType.WhiteSpace;[ ];
            HtmlTokenType.ForwardSlash;[/];
