{
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        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/user-select",
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                "version_added": "54"
              },
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              {
                "version_added": "54"
              },
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              }
            ],
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              {
                "prefix": "-ms-",
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              },
              {
                "prefix": "-webkit-",
                "version_added": "12"
              }
            ],
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              {
                "version_added": "69"
              },
              {
                "prefix": "-moz-",
                "version_added": "1"
              },
              {
                "prefix": "-webkit-",
                "version_added": "49"
              },
              {
                "prefix": "-webkit-",
                "version_added": "44",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.prefixes.webkit",
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                  }
                ]
              }
            ],
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              {
                "prefix": "-moz-",
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              },
              {
                "prefix": "-webkit-",
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              },
              {
                "prefix": "-webkit-",
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                  {
                    "type": "preference",
                    "name": "layout.css.prefixes.webkit",
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                  }
                ]
              }
            ],
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              "prefix": "-ms-",
              "version_added": "10"
            },
            "opera": {
              "prefix": "-webkit-",
              "version_added": "15"
            },
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              "prefix": "-webkit-",
              "version_added": "14"
            },
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              {
                "version_added": "3",
                "prefix": "-webkit-"
              },
              {
                "version_added": "2",
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                "prefix": "-khtml-"
              }
            ],
            "safari_ios": {
              "prefix": "-webkit-",
              "version_added": "3"
            },
            "samsunginternet_android": [
              {
                "version_added": "6.0"
              },
              {
                "prefix": "-webkit-",
                "version_added": "1.0"
              }
            ],
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              {
                "version_added": "54"
              },
              {
                "prefix": "-webkit-",
                "version_added": "≤37"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "all": {
          "__compat": {
            "support": {
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                "version_added": "53"
              },
              "chrome_android": {
                "version_added": "53"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "1"
              },
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                "version_added": "4"
              },
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                "version_added": false
              },
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                "version_added": "40"
              },
              "opera_android": {
                "version_added": "41"
              },
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                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
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              },
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              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "auto": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
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              },
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                "version_added": "10"
              },
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              },
              "opera_android": {
                "version_added": "14"
              },
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              },
              "safari_ios": {
                "version_added": "3"
              },
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              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "contain": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "alternative_name": "element",
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                "version_removed": "79"
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "alternative_name": "element",
                "version_added": "10"
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "none": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
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                {
                  "version_added": "21"
                },
                {
                  "version_added": "1",
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                  "prefix": "-moz-"
                }
              ],
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                {
                  "version_added": "21"
                },
                {
                  "version_added": "4",
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                  "prefix": "-moz-"
                }
              ],
              "ie": {
                "version_added": "10"
              },
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                "version_added": "15"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "2"
              },
              "safari_ios": {
                "version_added": "3"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
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          "__compat": {
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
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                "version_added": "1"
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              },
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              },
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              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "2",
                "partial_implementation": true,
                "notes": "Allows typing in the <code>&lt;html&gt;</code> container."
              },
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                "version_added": "3",
                "partial_implementation": true,
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            },
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              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}