{ "type": "Document", "span": { "start": 1, "end": 53, "ctxt": 0 }, "mode": "no-quirks", "children": [ { "type": "DocumentType", "span": { "start": 1, "end": 16, "ctxt": 0 }, "name": "html", "publicId": null, "systemId": null }, { "type": "Element", "span": { "start": 16, "end": 50, "ctxt": 0 }, "tagName": "html", "namespace": "http://www.w3.org/1999/xhtml", "attributes": [], "children": [ { "type": "Element", "span": { "start": 0, "end": 32, "ctxt": 0 }, "tagName": "head", "namespace": "http://www.w3.org/1999/xhtml", "attributes": [], "children": [], "content": null }, { "type": "Element", "span": { "start": 22, "end": 43, "ctxt": 0 }, "tagName": "frameset", "namespace": "http://www.w3.org/1999/xhtml", "attributes": [], "children": [], "content": null } ], "content": null } ] }