{
  "css": {
    "at-rules": {
      "keyframes": {
        "__compat": {
          "description": "<code>@keyframes</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@keyframes",
          "support": {
            "chrome": [
              {
                "version_added": "43"
              },
              {
                "prefix": "-webkit-",
                "version_added": "2"
              }
            ],
            "chrome_android": [
              {
                "version_added": "43"
              },
              {
                "prefix": "-webkit-",
                "version_added": "18"
              }
            ],
            "edge": {
              "version_added": "12"
            },
            "firefox": [
              {
                "version_added": "16",
                "notes": "<code>@keyframes</code> is unsupported in scoped stylesheets in Firefox (<a href='https://bugzil.la/830056'>bug 830056</a>)."
              },
              {
                "version_added": "49",
                "prefix": "-webkit-"
              },
              {
                "version_added": "44",
                "prefix": "-webkit-",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.prefixes.webkit",
                    "value_to_set": "true"
                  }
                ]
              },
              {
                "prefix": "-moz-",
                "version_added": "5"
              }
            ],
            "firefox_android": [
              {
                "version_added": "16"
              },
              {
                "version_added": "49",
                "prefix": "-webkit-"
              },
              {
                "version_added": "44",
                "prefix": "-webkit-",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.prefixes.webkit",
                    "value_to_set": "true"
                  }
                ]
              },
              {
                "prefix": "-moz-",
                "version_added": "5"
              }
            ],
            "ie": {
              "version_added": "10"
            },
            "opera": [
              {
                "version_added": "30"
              },
              {
                "prefix": "-webkit-",
                "version_added": "15"
              },
              {
                "version_added": "12.1",
                "version_removed": "15"
              },
              {
                "prefix": "-o-",
                "version_added": "12",
                "version_removed": "15"
              }
            ],
            "opera_android": [
              {
                "version_added": "30"
              },
              {
                "prefix": "-webkit-",
                "version_added": "14"
              },
              {
                "version_added": "12.1",
                "version_removed": "14"
              },
              {
                "prefix": "-o-",
                "version_added": "12",
                "version_removed": "14"
              }
            ],
            "safari": [
              {
                "version_added": "9"
              },
              {
                "prefix": "-webkit-",
                "version_added": "4"
              }
            ],
            "safari_ios": [
              {
                "version_added": "9"
              },
              {
                "prefix": "-webkit-",
                "version_added": "4"
              }
            ],
            "samsunginternet_android": [
              {
                "version_added": "4.0"
              },
              {
                "prefix": "-webkit-",
                "version_added": "1.0"
              }
            ],
            "webview_android": [
              {
                "version_added": "43"
              },
              {
                "prefix": "-webkit-",
                "version_added": "≤37"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "ignore_important_declarations": {
          "__compat": {
            "description": "Ignore <code>!important</code> declarations",
            "support": {
              "chrome": {
                "version_added": "45"
              },
              "chrome_android": {
                "version_added": "45"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "19"
              },
              "firefox_android": {
                "version_added": "19"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "32"
              },
              "opera_android": {
                "version_added": "32"
              },
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "version_added": "5.0"
              },
              "webview_android": {
                "version_added": "45"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}