{
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            "chrome_android": {
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            "edge": {
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          },
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                {
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                {
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                  "flags": [
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                }
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                {
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                  "flags": [
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                }
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                {
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                {
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                  "flags": [
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                      "name": "Enable experimental Web Platform features"
                    }
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                }
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              "safari_ios": {
                "version_added": "11.3"
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              "samsunginternet_android": {
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              },
              "webview_android": {
                "version_added": "65"
              }
            },
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              "standard_track": true,
              "deprecated": false
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              "support": {
                "chrome": {
                  "version_added": "58"
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                "chrome_android": {
                  "version_added": "58"
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                "edge": {
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                "firefox": {
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                "firefox_android": {
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                "ie": {
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                "opera": {
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                "opera_android": {
                  "version_added": "43"
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                "safari": {
                  "version_added": false
                },
                "safari_ios": {
                  "version_added": false
                },
                "samsunginternet_android": {
                  "version_added": "9.0"
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                "webview_android": {
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                "standard_track": true,
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            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/display-outside",
            "support": {
              "chrome": {
                "version_added": "1"
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              "chrome_android": {
                "version_added": "18"
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              "edge": {
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              "firefox": {
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              "firefox_android": {
                "version_added": "4"
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              "ie": {
                "version_added": "4"
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              "opera": {
                "version_added": "7"
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              "opera_android": {
                "version_added": "10.1"
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              "safari": {
                "version_added": "1"
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              "safari_ios": {
                "version_added": "1"
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              "samsunginternet_android": {
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              "webview_android": {
                "version_added": "1"
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            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          },
          "run-in": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "1",
                  "version_removed": "32",
                  "notes": "Before Chrome 4, <code>run-in</code> was not supported before inline elements."
                },
                "chrome_android": {
                  "version_added": "18",
                  "version_removed": "32"
                },
                "edge": {
                  "version_added": false
                },
                "firefox": {
                  "version_added": false
                },
                "firefox_android": {
                  "version_added": false
                },
                "ie": {
                  "version_added": "8"
                },
                "opera": {
                  "version_added": "7",
                  "version_removed": "19"
                },
                "opera_android": {
                  "version_added": "10.1",
                  "version_removed": "19"
                },
                "safari": {
                  "version_added": "1",
                  "version_removed": "8",
                  "notes": "Before Safari 5, <code>run-in</code> was not supported before inline elements."
                },
                "safari_ios": {
                  "version_added": "1",
                  "version_removed": "8",
                  "notes": "Before Safari 5, <code>run-in</code> was not supported before inline elements."
                },
                "samsunginternet_android": {
                  "version_added": "1.0",
                  "version_removed": "2.0"
                },
                "webview_android": {
                  "version_added": "≤37",
                  "version_removed": "≤37"
                }
              },
              "status": {
                "experimental": true,
                "standard_track": true,
                "deprecated": false
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            }
          }
        },
        "flex": {
          "__compat": {
            "support": {
              "chrome": [
                {
                  "version_added": "29"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "21"
                }
              ],
              "chrome_android": [
                {
                  "version_added": "29"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "25"
                }
              ],
              "edge": {
                "version_added": "12"
              },
              "firefox": [
                {
                  "version_added": "20",
                  "notes": "Firefox 28 added multi-line flexbox support."
                },
                {
                  "version_added": "18",
                  "version_removed": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.flexbox.enabled",
                      "value_to_set": "true"
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                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "20",
                  "notes": "Firefox 28 added multi-line flexbox support."
                },
                {
                  "version_added": "18",
                  "version_removed": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.flexbox.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": [
                {
                  "version_added": "11",
                  "partial_implementation": true,
                  "notes": "IE incorrectly positions inline block content inside flex containers. See the <a href='https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57'>discussion on Microsoft Answers</a>."
                },
                {
                  "alternative_name": "-ms-flexbox",
                  "version_added": "8",
                  "partial_implementation": true,
                  "notes": "IE incorrectly positions inline block content inside flex containers. See the <a href='https://answers.microsoft.com/en-us/ie/forum/ie11-iewindows_10/inline-block-content-in-a-flex-container-not/deea64e2-933b-4bd2-a98c-62be16d04b57'>discussion on Microsoft Answers</a>."
                }
              ],
              "opera": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "15"
                },
                {
                  "version_added": "12.1",
                  "version_removed": "15"
                }
              ],
              "opera_android": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "14"
                },
                {
                  "version_added": "12.1",
                  "version_removed": "14"
                }
              ],
              "safari": [
                {
                  "version_added": "9"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "6.1"
                }
              ],
              "safari_ios": [
                {
                  "version_added": "9"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "7"
                }
              ],
              "samsunginternet_android": [
                {
                  "version_added": "2.0"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "1.5"
                }
              ],
              "webview_android": [
                {
                  "version_added": "4.4"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "≤37"
                }
              ]
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          }
        },
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          "__compat": {
            "support": {
              "chrome": {
                "version_added": "58"
              },
              "chrome_android": {
                "version_added": "58"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "53"
              },
              "firefox_android": {
                "version_added": "53"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "45"
              },
              "opera_android": {
                "version_added": "43"
              },
              "safari": {
                "version_added": "13"
              },
              "safari_ios": {
                "version_added": "13"
              },
              "samsunginternet_android": {
                "version_added": "7.0"
              },
              "webview_android": {
                "version_added": "58"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "grid": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": {
                "version_added": "57"
              },
              "edge": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-ms-",
                  "version_added": "12"
                }
              ],
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": {
                "version_added": "52"
              },
              "ie": {
                "prefix": "-ms-",
                "version_added": "10",
                "partial_implementation": true,
                "notes": "Internet Explorer implements an older version of the specification."
              },
              "opera": {
                "version_added": "44"
              },
              "opera_android": {
                "version_added": "43"
              },
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "notes": "Samsung Internet added this earlier than the corresponding Chrome version would indicate.",
                "version_added": "6.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "inline-block": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": [
                {
                  "version_added": "8"
                },
                {
                  "version_added": "6",
                  "partial_implementation": true,
                  "notes": "Until Internet Explorer 8, <code>inline-block</code> is only for natural inline elements."
                }
              ],
              "opera": {
                "version_added": "7"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "inline-flex": {
          "__compat": {
            "support": {
              "chrome": [
                {
                  "version_added": "29"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "21"
                }
              ],
              "chrome_android": [
                {
                  "version_added": "29"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "25"
                }
              ],
              "edge": {
                "version_added": "12"
              },
              "firefox": [
                {
                  "version_added": "20",
                  "notes": "Firefox 28 added multi-line flexbox support."
                },
                {
                  "version_added": "18",
                  "version_removed": "20",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.flexbox.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "20",
                  "notes": "Firefox 28 added multi-line flexbox support."
                },
                {
                  "version_added": "18",
                  "version_removed": "20",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.flexbox.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": [
                {
                  "version_added": "11"
                },
                {
                  "alternative_name": "-ms-inline-flexbox",
                  "version_added": "8"
                }
              ],
              "opera": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "15"
                }
              ],
              "opera_android": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "14"
                }
              ],
              "safari": [
                {
                  "version_added": "9"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "6.1"
                }
              ],
              "safari_ios": [
                {
                  "version_added": "9"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "6.1"
                }
              ],
              "samsunginternet_android": [
                {
                  "version_added": "2.0"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "1.5"
                }
              ],
              "webview_android": [
                {
                  "version_added": "4.4"
                },
                {
                  "prefix": "-webkit-",
                  "version_added": "≤37"
                }
              ]
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "inline-grid": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": {
                "version_added": "57"
              },
              "edge": [
                {
                  "version_added": "16"
                },
                {
                  "prefix": "-ms-",
                  "version_added": "12"
                }
              ],
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": {
                "version_added": "52"
              },
              "ie": {
                "prefix": "-ms-",
                "version_added": "10",
                "partial_implementation": true,
                "notes": "Internet Explorer implements an older version of the specification."
              },
              "opera": {
                "version_added": "44"
              },
              "opera_android": {
                "version_added": "43"
              },
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "notes": "Samsung Internet added this earlier than the corresponding Chrome version would indicate.",
                "version_added": "6.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "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"
              },
              "firefox": {
                "version_added": "3"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "8"
              },
              "opera": {
                "version_added": "7"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "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"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "6"
              },
              "opera": {
                "version_added": "7"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          },
          "legend-support": {
            "__compat": {
              "description": "Supported on <code>&lt;legend&gt;</code>",
              "support": {
                "chrome": {
                  "version_added": "71"
                },
                "chrome_android": {
                  "version_added": "71"
                },
                "edge": {
                  "version_added": "79"
                },
                "firefox": {
                  "version_added": "64"
                },
                "firefox_android": {
                  "version_added": "64"
                },
                "ie": {
                  "version_added": false
                },
                "opera": {
                  "version_added": "58"
                },
                "opera_android": {
                  "version_added": "50"
                },
                "safari": {
                  "version_added": false
                },
                "safari_ios": {
                  "version_added": false
                },
                "samsunginternet_android": {
                  "version_added": "10.0"
                },
                "webview_android": {
                  "version_added": "71"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
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        "multi-keyword_values": {
          "__compat": {
            "description": "Multi-keyword values",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "70"
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "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": true,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "none": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": "1",
                "notes": "Chrome 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              },
              "chrome_android": {
                "version_added": "18",
                "notes": "Chrome 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "4"
              },
              "opera": {
                "version_added": "7",
                "notes": "Opera 52 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              },
              "opera_android": {
                "version_added": "10.1",
                "notes": "Opera Android 47 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "samsunginternet_android": {
                "version_added": "1.0",
                "notes": "Chrome 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              },
              "webview_android": {
                "version_added": "≤37",
                "notes": "WebView 65 stopped creating layout objects for elements inside an <code>&lt;iframe&gt;</code> with <code>display:none</code> applied."
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "ruby_values": {
          "__compat": {
            "description": "<code>ruby</code>, <code>ruby-base</code>, <code>ruby-base-container</code>, <code>ruby-text</code>, and <code>ruby-text-container</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": "12",
                "version_removed": "79"
              },
              "firefox": [
                {
                  "version_added": "38"
                },
                {
                  "version_added": "34",
                  "version_removed": "38",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.ruby.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "38"
                },
                {
                  "version_added": "34",
                  "version_removed": "38",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.ruby.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": "7"
              },
              "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
            }
          }
        },
        "table_values": {
          "__compat": {
            "description": "<code>table</code>, <code>table-cell</code>, <code>table-column</code>, <code>table-column-group</code>, <code>table-footer-group</code>, <code>table-header-group</code>, <code>table-row</code>, and <code>table-row-group</code>",
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "8"
              },
              "opera": {
                "version_added": "7"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "xul_box_values": {
          "__compat": {
            "description": "<code>-moz-box</code> and <code>-moz-inline-box</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "64",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-box-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "64",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-box-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        },
        "xul_deck_values": {
          "__compat": {
            "description": "<code>-moz-deck</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        },
        "xul_grid_values": {
          "__compat": {
            "description": "<code>-moz-grid</code>, <code>-moz-grid-group</code>, and <code>-moz-grid-line</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        },
        "xul_inline_grid_stack": {
          "__compat": {
            "description": "<code>-moz-inline-grid</code> and <code>-moz-inline-stack</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "62",
                  "notes": "Available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "version_removed": "70",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        },
        "xul_popup_values": {
          "__compat": {
            "description": "<code>-moz-popup</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        },
        "xul_stack_value": {
          "__compat": {
            "description": "<code>-moz-stack</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "1",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "4",
                  "version_removed": "62",
                  "notes": "This is still available to Firefox UI code."
                },
                {
                  "version_added": "62",
                  "flags": [
                    {
                      "name": "layout.css.xul-display-values.content.enabled",
                      "type": "preference",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "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": false,
              "deprecated": true
            }
          }
        }
      }
    }
  }
}