{
  "css": {
    "properties": {
      "grid-template-columns": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/grid-template-columns",
          "support": {
            "chrome": [
              {
                "version_added": "57"
              },
              {
                "version_added": "29",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable experimental Web Platform features"
                  }
                ]
              }
            ],
            "chrome_android": [
              {
                "version_added": "57"
              },
              {
                "version_added": "29",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable experimental Web Platform features"
                  }
                ]
              }
            ],
            "edge": {
              "version_added": "16"
            },
            "firefox": [
              {
                "version_added": "52"
              },
              {
                "version_added": "40",
                "version_removed": "59",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.grid.enabled",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "firefox_android": [
              {
                "version_added": "52"
              },
              {
                "version_added": "40",
                "version_removed": "59",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.grid.enabled",
                    "value_to_set": "true"
                  }
                ]
              }
            ],
            "ie": {
              "version_added": false
            },
            "opera": [
              {
                "version_added": "44"
              },
              {
                "version_added": "28",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable experimental Web Platform features"
                  }
                ]
              }
            ],
            "opera_android": [
              {
                "version_added": "43"
              },
              {
                "version_added": "28",
                "flags": [
                  {
                    "type": "preference",
                    "name": "Enable experimental Web Platform features"
                  }
                ]
              }
            ],
            "safari": {
              "version_added": "10.1"
            },
            "safari_ios": {
              "version_added": "10.3"
            },
            "samsunginternet_android": {
              "version_added": "6.0"
            },
            "webview_android": {
              "version_added": "57"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "animation": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/grid-template-columns",
            "description": "Animation of tracks",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "66"
              },
              "firefox_android": {
                "version_added": "66"
              },
              "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": true,
              "deprecated": false
            }
          }
        },
        "fit-content": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fit-content",
            "description": "<code>fit-content()</code>",
            "support": {
              "chrome": {
                "version_added": "29"
              },
              "chrome_android": {
                "version_added": "57"
              },
              "edge": {
                "version_added": "16"
              },
              "firefox": {
                "version_added": "51"
              },
              "firefox_android": {
                "version_added": "51"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "44"
              },
              "opera_android": {
                "version_added": "43"
              },
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "minmax": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/minmax",
            "description": "<code>minmax()</code>",
            "support": {
              "chrome": [
                {
                  "version_added": "57"
                },
                {
                  "version_added": "29",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "chrome_android": [
                {
                  "version_added": "57"
                },
                {
                  "version_added": "29",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "edge": {
                "version_added": "16"
              },
              "firefox": [
                {
                  "version_added": "52"
                },
                {
                  "version_added": "40",
                  "version_removed": "59",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.grid.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "52"
                },
                {
                  "version_added": "40",
                  "version_removed": "59",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.grid.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "opera": [
                {
                  "version_added": "44"
                },
                {
                  "version_added": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "opera_android": [
                {
                  "version_added": "43"
                },
                {
                  "version_added": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "repeat": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/repeat",
            "description": "<code>repeat()</code>",
            "support": {
              "chrome": [
                {
                  "version_added": "57"
                },
                {
                  "version_added": "38",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "chrome_android": [
                {
                  "version_added": "57"
                },
                {
                  "version_added": "38",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "edge": {
                "version_added": "16"
              },
              "firefox": [
                {
                  "version_added": "57",
                  "notes": "<code>repeat(auto-fill, ...)</code> and <code>repeat(auto-fit, ...)</code> only support one repeated column (see <a href='https://bugzil.la/1341507'>bug 1341507</a>).",
                  "partial_implementation": true
                },
                {
                  "version_added": "52",
                  "version_removed": "57",
                  "notes": "<a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> doesn't work in <code>repeat()</code> (see <a href='https://bugzil.la/1350069'>bug 1350069</a>).",
                  "partial_implementation": true
                },
                {
                  "version_added": "40",
                  "version_removed": "59",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.grid.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": [
                {
                  "version_added": "52"
                },
                {
                  "version_added": "40",
                  "version_removed": "59",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.grid.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "ie": {
                "version_added": false
              },
              "opera": [
                {
                  "version_added": "44"
                },
                {
                  "version_added": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "opera_android": [
                {
                  "version_added": "43"
                },
                {
                  "version_added": "28",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "Enable experimental Web Platform features"
                    }
                  ]
                }
              ],
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": {
                "version_added": "10.3"
              },
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "subgrid": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/CSS_Grid_Layout/Subgrid",
            "description": "<code>subgrid</code>",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "71"
                },
                {
                  "version_added": "69",
                  "notes": "Enabled by default in Firefox Nightly.",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "layout.css.grid-template-subgrid-value.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "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": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}