{
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        ],
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            },
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        },
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          "standard_track": true,
          "deprecated": false
        }
      },
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        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/appendRule",
          "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframesrule-appendrule",
          "tags": [
            "web-features:animations-css"
          ],
          "support": {
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              {
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              },
              {
                "alternative_name": "insertRule",
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                "version_removed": "45"
              }
            ],
            "chrome_android": "mirror",
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            },
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              {
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              },
              {
                "alternative_name": "insertRule",
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                "version_removed": "21"
              }
            ],
            "firefox_android": "mirror",
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            },
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              {
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              },
              {
                "alternative_name": "insertRule",
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              {
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            ],
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              {
                "alternative_name": "insertRule",
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                "alternative_name": "insertRule",
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              }
            ],
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
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            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "cssRules": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/cssRules",
          "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-cssrules",
          "tags": [
            "web-features:animations-css"
          ],
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              "version_added": "1"
            },
            "chrome_android": "mirror",
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            },
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            "webview_ios": "mirror"
          },
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            "standard_track": true,
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          "tags": [
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          ],
          "support": {
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            },
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            },
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            "webview_ios": "mirror"
          },
          "status": {
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            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "findRule": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/findRule",
          "spec_url": "https://drafts.csswg.org/css-animations/#interface-csskeyframesrule-findrule",
          "tags": [
            "web-features:animations-css"
          ],
          "support": {
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            },
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            },
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            "webview_ios": "mirror"
          },
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            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
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        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/length",
          "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-length",
          "tags": [
            "web-features:animations-css"
          ],
          "support": {
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              "version_added": "123"
            },
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            "firefox": {
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            },
            "firefox_android": "mirror",
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            },
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            "opera": "mirror",
            "opera_android": "mirror",
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            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
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            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "name": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/name",
          "spec_url": "https://drafts.csswg.org/css-animations/#dom-csskeyframesrule-name",
          "tags": [
            "web-features:animations-css"
          ],
          "support": {
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              "version_added": "1"
            },
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            },
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            },
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            },
            "opera_android": {
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            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
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            "webview_ios": "mirror"
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            "deprecated": false
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        }
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  }
}