{
 "compat_features": [
  "css.properties.position-visibility.anchors-valid",
  "css.properties.position-visibility.anchors-visible"
 ],
 "description": "The position-visibility: anchors-valid and position-visibility: anchors-visible CSS declarations are aliases for anchor-valid and anchor-visible.",
 "description_html": "The <code>position-visibility: anchors-valid</code> and <code>position-visibility: anchors-visible</code> CSS declarations are aliases for <code>anchor-valid</code> and <code>anchor-visible</code>.",
 "discouraged": {
  "according_to": [
   "https://drafts.csswg.org/css-anchor-position-1/#position-visibility:~:text=User%20agents%20may%20recognize%20anchors%2Dvalid%20and%20anchors%2Dvisible",
   "https://github.com/w3c/csswg-drafts/issues/10201#issuecomment-4390233490"
  ],
  "reason": "The anchors-valid and anchors-visible values were renamed to the singular anchor-valid and anchor-visible values, since they refer to one anchor at a time.",
  "reason_html": "The <code>anchors-valid</code> and <code>anchors-visible</code> values were renamed to the singular <code>anchor-valid</code> and <code>anchor-visible</code> values, since they refer to one anchor at a time."
 },
 "kind": "feature",
 "name": "anchors-valid and anchors-visible",
 "spec": [
  "https://drafts.csswg.org/css-anchor-position-1/#position-visibility"
 ],
 "status": {
  "baseline": false,
  "by_compat_key": {
   "css.properties.position-visibility.anchors-valid": {
    "baseline": false,
    "support": {
     "firefox": "147",
     "firefox_android": "147",
     "safari": "26.2",
     "safari_ios": "26.2"
    }
   },
   "css.properties.position-visibility.anchors-visible": {
    "baseline": false,
    "support": {
     "chrome": "125",
     "chrome_android": "125",
     "edge": "125",
     "firefox": "147",
     "firefox_android": "147",
     "safari": "26.2",
     "safari_ios": "26.2"
    }
   }
  },
  "support": {
   "firefox": "147",
   "firefox_android": "147",
   "safari": "26.2",
   "safari_ios": "26.2"
  }
 },
 "id": "anchor-positioning-position-visibility-plurals",
 "groups": [],
 "specs": [
  {
   "url": "https://drafts.csswg.org/css-anchor-position-1/#position-visibility",
   "seriesComposition": "full",
   "shortname": "css-anchor-position-1",
   "series": {
    "shortname": "css-anchor-position",
    "currentSpecification": "css-anchor-position-1",
    "title": "CSS Anchor Positioning",
    "shortTitle": "CSS Anchor Positioning",
    "releaseUrl": "https://www.w3.org/TR/css-anchor-position/",
    "nightlyUrl": "https://drafts.csswg.org/css-anchor-position/"
   },
   "seriesVersion": "1",
   "seriesNext": "css-anchor-position-2",
   "organization": "W3C",
   "groups": [
    {
     "name": "Cascading Style Sheets (CSS) Working Group",
     "url": "https://www.w3.org/groups/wg/css/"
    }
   ],
   "release": {
    "url": "https://www.w3.org/TR/css-anchor-position-1/",
    "status": "Working Draft",
    "filename": "Overview.html"
   },
   "nightly": {
    "url": "https://drafts.csswg.org/css-anchor-position-1/",
    "status": "Editor's Draft",
    "alternateUrls": [
     "https://w3c.github.io/csswg-drafts/css-anchor-position-1/",
     "https://w3c.github.io/csswg-drafts/css-anchor-position/"
    ],
    "repository": "https://github.com/w3c/csswg-drafts",
    "sourcePath": "css-anchor-position-1/Overview.bs",
    "filename": "index.html"
   },
   "title": "CSS Anchor Positioning Module Level 1",
   "source": "w3c",
   "shortTitle": "CSS Anchor Positioning 1",
   "categories": [
    "browser"
   ],
   "standing": "good",
   "tests": {
    "repository": "https://github.com/web-platform-tests/wpt",
    "testPaths": [
     "css/css-anchor-position"
    ]
   },
   "fragment": "position-visibility"
  }
 ],
 "mdnUrls": [],
 "standardPositions": [],
 "hasNegativeStandardPosition": false,
 "stateOfSurveys": [],
 "chromeUseCounters": {},
 "interop": [],
 "wpt": null,
 "developerSignals": null,
 "bugs": {},
 "useCases": null,
 "baselineLowDateAsObject": null,
 "baselineHighDateAsObject": null,
 "blockedOn": "Chromium",
 "blockedSince": "January 2026",
 "monthsBlocked": 7
}