{
  "css": {
    "properties": {
      "grid-template-columns": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/grid-template-columns",
          "spec_url": [
            "https://drafts.csswg.org/css-grid/#track-sizing",
            "https://drafts.csswg.org/css-grid/#subgrids"
          ],
          "tags": [
            "web-features:grid"
          ],
          "support": {
            "chrome": {
              "version_added": "57"
            },
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "16"
              },
              {
                "alternative_name": "-ms-grid-columns",
                "version_added": "12",
                "version_removed": "79"
              }
            ],
            "firefox": {
              "version_added": "52"
            },
            "firefox_android": "mirror",
            "ie": {
              "alternative_name": "-ms-grid-columns",
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": {
              "version_added": "6.0"
            },
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "animation": {
          "__compat": {
            "description": "Animation of tracks",
            "tags": [
              "web-features:grid-animation"
            ],
            "support": {
              "chrome": {
                "version_added": "107"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "66"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "16"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "auto": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-auto",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "fit-content": {
          "__compat": {
            "description": "`fit-content()`",
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fit-content_function",
            "spec_url": "https://drafts.csswg.org/css-grid/#funcdef-grid-template-columns-fit-content",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "16"
              },
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "masonry": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-grid-3/#masonry-layout",
            "tags": [
              "web-features:masonry"
            ],
            "support": {
              "chrome": {
                "version_added": false,
                "impl_url": "https://crbug.com/40128480"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "77",
                "flags": [
                  {
                    "type": "preference",
                    "name": "layout.css.grid-template-masonry-value.enabled",
                    "value_to_set": "true"
                  }
                ],
                "impl_url": "https://bugzil.la/1757446"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "preview",
                "impl_url": "https://webkit.org/b/248287"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": true,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "max-content": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-max-content",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "min-content": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-columns-min-content",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "minmax": {
          "__compat": {
            "description": "`minmax()`",
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/minmax",
            "spec_url": "https://drafts.csswg.org/css-grid/#funcdef-grid-template-columns-minmax",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "16"
              },
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "none": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-grid-2/#valdef-grid-template-rows-none",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "repeat": {
          "__compat": {
            "description": "`repeat()`",
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/repeat",
            "spec_url": "https://drafts.csswg.org/css-grid/#repeat-notation",
            "tags": [
              "web-features:grid"
            ],
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "16"
              },
              "firefox": [
                {
                  "version_added": "76"
                },
                {
                  "version_added": "57",
                  "version_removed": "76",
                  "partial_implementation": true,
                  "notes": "`repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see [bug 1341507](https://bugzil.la/1341507))."
                },
                {
                  "version_added": "52",
                  "version_removed": "57",
                  "partial_implementation": true,
                  "notes": "[`calc()`](https://developer.mozilla.org/docs/Web/CSS/calc) doesn't work in `repeat()` (see [bug 1350069](https://bugzil.la/1350069))."
                }
              ],
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": {
                "version_added": "6.0"
              },
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "subgrid": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/CSS_grid_layout/Subgrid",
            "spec_url": "https://drafts.csswg.org/css-grid/#subgrids",
            "tags": [
              "web-features:subgrid"
            ],
            "support": {
              "chrome": {
                "version_added": "117"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "71"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "16"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}