Longitude and latitude bounding box around the UK

uk-bounding-box.geojson

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -11,
              49
            ],
            [
              -11,
              60
            ],
            [
              2,
              60
            ],
            [
              2,
              49
            ],
            [
              -11,
              49
            ]
          ]
        ]
      }
    }
  ]
}