Markup block - Gen<None> - 19 - (0:0,0)
    Tag block - Gen<None> - 19 - (0:0,0)
        Markup span - Gen<Markup> - [<div] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:2
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.Text;[div];
        Markup block - Gen<Attr:class, class="@(4:0,4),"@(15:0,15)> - 12 - (4:0,4)
            Markup span - Gen<None> - [ class="] - SpanEditHandler;Accepts:Any - (4:0,4) - Tokens:4
                HtmlTokenType.WhiteSpace;[ ];
                HtmlTokenType.Text;[class];
                HtmlTokenType.Equals;[=];
                HtmlTokenType.DoubleQuote;["];
            Markup span - Gen<LitAttr:@(12:0,12)> - [btn] - SpanEditHandler;Accepts:Any - (12:0,12) - Tokens:1
                HtmlTokenType.Text;[btn];
            Markup span - Gen<None> - ["] - SpanEditHandler;Accepts:Any - (15:0,15) - Tokens:1
                HtmlTokenType.DoubleQuote;["];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:3
            HtmlTokenType.WhiteSpace;[ ];
            HtmlTokenType.ForwardSlash;[/];
            HtmlTokenType.CloseAngle;[>];
