Markup block - Gen<None> - 19 - (0:0,0)
    Tag block - Gen<None> - 19 - (0:0,0)
        Markup span - Gen<Markup> - [<a] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:2
            SyntaxKind.OpenAngle;[<];
            SyntaxKind.Text;[a];
        Markup block - Gen<Attr:href, 	LFhref='@(2:0,2),'@(15:1,9)> - 14 - (2:0,2)
            Markup span - Gen<None> - [ 	LFhref='] - SpanEditHandler;Accepts:Any - (2:0,2) - Tokens:5
                SyntaxKind.Whitespace;[ 	];
                SyntaxKind.NewLine;[LF];
                SyntaxKind.Text;[href];
                SyntaxKind.Equals;[=];
                SyntaxKind.SingleQuote;['];
            Markup span - Gen<LitAttr:@(12:1,6)> - [Foo] - SpanEditHandler;Accepts:Any - (12:1,6) - Tokens:1
                SyntaxKind.Text;[Foo];
            Markup span - Gen<None> - ['] - SpanEditHandler;Accepts:Any - (15:1,9) - Tokens:1
                SyntaxKind.SingleQuote;['];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:None - (16:1,10) - Tokens:3
            SyntaxKind.Whitespace;[ ];
            SyntaxKind.ForwardSlash;[/];
            SyntaxKind.CloseAngle;[>];
