{
  "css": {
    "properties": {
      "flex-grow": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/flex-grow",
          "support": {
            "chrome": [
              {
                "version_added": "29"
              },
              {
                "prefix": "-webkit-",
                "version_added": "21"
              }
            ],
            "chrome_android": [
              {
                "version_added": "29"
              },
              {
                "prefix": "-webkit-",
                "version_added": "21"
              }
            ],
            "edge": [
              {
                "version_added": "12"
              },
              {
                "prefix": "-webkit-",
                "version_added": "12"
              }
            ],
            "edge_mobile": [
              {
                "version_added": true
              },
              {
                "prefix": "-webkit-",
                "version_added": true
              }
            ],
            "firefox": [
              {
                "version_added": "20",
                "notes": "Since Firefox 28, multi-line flexbox is supported."
              },
              {
                "version_added": "18",
                "version_removed": "20",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.flexbox.enabled",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "firefox_android": [
              {
                "version_added": "20",
                "notes": "Since Firefox 28, multi-line flexbox is supported."
              },
              {
                "version_added": "18",
                "version_removed": "20",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.flexbox.enabled",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "ie": {
              "alternative_name": "-ms-flex-positive",
              "version_added": "11"
            },
            "opera": [
              {
                "version_added": "12.1"
              },
              {
                "prefix": "-webkit-",
                "version_added": "15"
              }
            ],
            "opera_android": [
              {
                "version_added": "12.1"
              },
              {
                "prefix": "-webkit-",
                "version_added": "15"
              }
            ],
            "safari": {
              "prefix": "-webkit-",
              "version_added": "6.1"
            },
            "safari_ios": {
              "version_added": null
            },
            "webview_android": [
              {
                "version_added": "29"
              },
              {
                "prefix": "-webkit-",
                "version_added": "21"
              }
            ]
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "less_than_zero_animate": {
          "__compat": {
            "description": "<0 animate",
            "support": {
              "chrome": {
                "version_added": "49"
              },
              "firefox": {
                "version_added": "32",
                "notes": "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."
              },
              "firefox_android": {
                "version_added": "32",
                "notes": "Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": false,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}