{ "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": "151" }, { "version_added": "144", "version_removed": "151", "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": "151" }, { "version_added": "147", "version_removed": "151", "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": "27" }, { "version_added": "26", "version_removed": "27", "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": "127" }, { "version_added": "125", "version_removed": "127", "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": "27" }, "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", "tags": [ "web-features:anchor-positioning" ], "support": { "chrome": { "version_added": "151" }, "chrome_android": "mirror", "edge": "mirror", "firefox": { "version_added": "151" }, "firefox_android": "mirror", "oculus": "mirror", "opera": "mirror", "opera_android": "mirror", "safari": { "version_added": "27" }, "safari_ios": "mirror", "samsunginternet_android": "mirror", "webview_android": "mirror", "webview_ios": "mirror" }, "status": { "experimental": false, "standard_track": true, "deprecated": false } } } } } } }