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
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.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
                SyntaxKind.Whitespace;[ ];
                SyntaxKind.Text;[class];
                SyntaxKind.Equals;[=];
                SyntaxKind.DoubleQuote;["];
            Markup span - Gen<LitAttr:@(12:0,12)> - [btn] - SpanEditHandler;Accepts:Any - (12:0,12) - Tokens:1
                SyntaxKind.Text;[btn];
            Markup span - Gen<None> - ["] - SpanEditHandler;Accepts:Any - (15:0,15) - Tokens:1
                SyntaxKind.DoubleQuote;["];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:Any - (16:0,16) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.CloseAngle;[>];
