css/properties/position-anchor.json

{
  "css": {
    "properties": {
      "position-anchor": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/position-anchor",
          "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#position-anchor",
          "tags": [
            "web-features:anchor-positioning"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "144",
                "partial_implementation": true,
                "notes": "The initial value is `none` instead of `normal` (see [bug 501399489](https://crbug.com/501399489))."
              },
              {
                "version_added": "127",
                "version_removed": "144",
                "partial_implementation": true,
                "notes": "The initial value is `auto` instead of `normal` (see [bug 460415950](https://crbug.com/460415950))."
              },
              {
                "version_added": "125",
                "version_removed": "127",
                "partial_implementation": true,
                "notes": "The initial value is `implicit` instead of `normal` (see [bug 340878604](https://crbug.com/340878604))."
              }
            ],
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "147",
              "partial_implementation": true,
              "notes": "The initial value is `auto` instead of `normal` (see [bug 2030351](https://bugzil.la/2030351)."
            },
            "firefox_android": "mirror",
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "26",
              "partial_implementation": true,
              "notes": "The initial value is `auto` instead of `normal` (see [bug 308981](https://webkit.org/b/308981) and [bug 311941](https://webkit.org/b/311941))."
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "auto": {
          "__compat": {
            "description": "`auto` value",
            "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#position-anchor",
            "tags": [
              "web-features:anchor-positioning"
            ],
            "support": {
              "chrome": {
                "version_added": "125",
                "partial_implementation": true,
                "notes": "The generic `auto` value exists, but it does not yet have the effect described in the spec."
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "147"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "26"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "none": {
          "__compat": {
            "description": "`none` value",
            "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#valdef-position-anchor-none",
            "tags": [
              "web-features:anchor-positioning"
            ],
            "support": {
              "chrome": {
                "version_added": "144"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "147"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "normal": {
          "__compat": {
            "description": "`normal` value",
            "spec_url": "https://drafts.csswg.org/css-anchor-position-1/#valdef-position-anchor-normal",
            "support": {
              "chrome": {
                "version_added": false,
                "impl_url": "https://crbug.com/501399489"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "151"
              },
              "firefox_android": "mirror",
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": false,
                "impl_url": "https://webkit.org/b/311941"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": true,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}