RazorDocument - [0..22)::22 - [LF<br/>Foo<custom />LF]
    MarkupBlock - [0..22)::22
        MarkupTextLiteral - [0..2)::2 - [LF] - Gen<Markup> - SpanEditHandler;Accepts:Any
            NewLine;[LF];
        MarkupElement - [2..7)::5
            MarkupTagBlock - [2..7)::5 - [<br/>]
                MarkupTextLiteral - [2..7)::5 - [<br/>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    Text;[br];
                    ForwardSlash;[/];
                    CloseAngle;[>];
        MarkupTextLiteral - [7..10)::3 - [Foo] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Text;[Foo];
        MarkupElement - [10..20)::10
            MarkupTagBlock - [10..20)::10 - [<custom />]
                MarkupTextLiteral - [10..20)::10 - [<custom />] - Gen<Markup> - SpanEditHandler;Accepts:Any
                    OpenAngle;[<];
                    Text;[custom];
                    Whitespace;[ ];
                    ForwardSlash;[/];
                    CloseAngle;[>];
        MarkupTextLiteral - [20..22)::2 - [LF] - Gen<Markup> - SpanEditHandler;Accepts:Any
            NewLine;[LF];
