Markup block - Gen<None> - 17 - (0:0,0)
    Tag block - Gen<None> - 17 - (0:0,0)
        Markup span - Gen<Markup> - [<a] - SpanEditHandler;Accepts:Any - (0:0,0) - Symbols:2
            HtmlSymbolType.OpenAngle;[<];
            HtmlSymbolType.Text;[a];
        Markup block - Gen<Attr:href,LFhref='@(2:0,2),'@(13:1,9)> - 12 - (2:0,2)
            Markup span - Gen<None> - [LFhref='] - SpanEditHandler;Accepts:Any - (2:0,2) - Symbols:4
                HtmlSymbolType.NewLine;[LF];
                HtmlSymbolType.Text;[href];
                HtmlSymbolType.Equals;[=];
                HtmlSymbolType.SingleQuote;['];
            Markup span - Gen<LitAttr:@(10:1,6)> - [Foo] - SpanEditHandler;Accepts:Any - (10:1,6) - Symbols:1
                HtmlSymbolType.Text;[Foo];
            Markup span - Gen<None> - ['] - SpanEditHandler;Accepts:Any - (13:1,9) - Symbols:1
                HtmlSymbolType.SingleQuote;['];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:None - (14:1,10) - Symbols:3
            HtmlSymbolType.WhiteSpace;[ ];
            HtmlSymbolType.ForwardSlash;[/];
            HtmlSymbolType.CloseAngle;[>];
