{
 "compat_features": [
  "css.selectors.backdrop",
  "css.selectors.backdrop.dialog",
  "css.selectors.backdrop.inherit_from_originating_element"
 ],
 "description": "The ::backdrop CSS pseudo-element is a box underneath an element in the top layer, such as a <dialog>. It can be used to create obscuring effects distinguishing a modal element from the elements underneath.",
 "description_html": "The <code>::backdrop</code> CSS pseudo-element is a box underneath an element in the top layer, such as a <code>&#x3C;dialog></code>. It can be used to create obscuring effects distinguishing a modal element from the elements underneath.",
 "group": [
  "selectors"
 ],
 "kind": "feature",
 "name": "::backdrop",
 "spec": [
  "https://drafts.csswg.org/css-position-4/#backdrop"
 ],
 "status": {
  "baseline": "high",
  "baseline_high_date": "2024-09-14",
  "baseline_low_date": "2022-03-14",
  "by_compat_key": {
   "css.selectors.backdrop": {
    "baseline": "high",
    "baseline_high_date": "2024-09-14",
    "baseline_low_date": "2022-03-14",
    "support": {
     "chrome": "37",
     "chrome_android": "37",
     "edge": "79",
     "firefox": "47",
     "firefox_android": "47",
     "safari": "15.4",
     "safari_ios": "15.4"
    }
   },
   "css.selectors.backdrop.dialog": {
    "baseline": "high",
    "baseline_high_date": "2024-09-14",
    "baseline_low_date": "2022-03-14",
    "support": {
     "chrome": "37",
     "chrome_android": "37",
     "edge": "79",
     "firefox": "98",
     "firefox_android": "98",
     "safari": "15.4",
     "safari_ios": "15.4"
    }
   },
   "css.selectors.backdrop.inherit_from_originating_element": {
    "baseline": "low",
    "baseline_low_date": "2024-03-05",
    "support": {
     "chrome": "122",
     "chrome_android": "122",
     "edge": "122",
     "firefox": "120",
     "firefox_android": "120",
     "safari": "17.4",
     "safari_ios": "17.4"
    }
   }
  },
  "support": {
   "chrome": "37",
   "chrome_android": "37",
   "edge": "79",
   "firefox": "47",
   "firefox_android": "47",
   "safari": "15.4",
   "safari_ios": "15.4"
  }
 },
 "id": "backdrop",
 "groups": [
  "selectors"
 ],
 "specs": [
  {
   "url": "https://drafts.csswg.org/css-position-4/#backdrop",
   "seriesComposition": "delta",
   "shortname": "css-position-4",
   "series": {
    "shortname": "css-position",
    "currentSpecification": "css-position-3",
    "title": "CSS Positioned Layout",
    "shortTitle": "CSS Positioned Layout",
    "releaseUrl": "https://www.w3.org/TR/css-position/",
    "nightlyUrl": "https://drafts.csswg.org/css-position/"
   },
   "seriesVersion": "4",
   "seriesPrevious": "css-position-3",
   "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-position-4/",
    "status": "Working Draft",
    "filename": "Overview.html"
   },
   "nightly": {
    "url": "https://drafts.csswg.org/css-position-4/",
    "status": "Editor's Draft",
    "alternateUrls": [
     "https://w3c.github.io/csswg-drafts/css-position-4/"
    ],
    "repository": "https://github.com/w3c/csswg-drafts",
    "sourcePath": "css-position-4/Overview.bs",
    "filename": "index.html"
   },
   "title": "CSS Positioned Layout Module Level 4",
   "source": "w3c",
   "shortTitle": "CSS Positioned Layout 4",
   "categories": [
    "browser"
   ],
   "standing": "good",
   "tests": {
    "repository": "https://github.com/web-platform-tests/wpt",
    "testPaths": [
     "css/css-position"
    ]
   },
   "fragment": "backdrop"
  }
 ],
 "mdnUrls": [
  {
   "slug": "Web/CSS/Reference/Selectors/::backdrop",
   "title": "`::backdrop` CSS pseudo-element",
   "anchor": null,
   "url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Selectors/::backdrop"
  }
 ],
 "standardPositions": [],
 "hasNegativeStandardPosition": false,
 "stateOfSurveys": [],
 "chromeUseCounters": {},
 "interop": [],
 "wpt": {
  "url": "https://wpt.fyi/results?q=feature:backdrop"
 },
 "developerSignals": null,
 "bugs": {
  "chrome": [
   "https://crbug.com/827397",
   "https://crbug.com/40569411"
  ],
  "chrome_android": [
   "https://crbug.com/40569411"
  ],
  "edge": [
   "https://crbug.com/40569411"
  ],
  "firefox": [
   "https://bugzil.la/1855668"
  ],
  "firefox_android": [
   "https://bugzil.la/1855668"
  ],
  "oculus": [
   "https://crbug.com/40569411"
  ],
  "opera": [
   "https://crbug.com/40569411"
  ],
  "opera_android": [
   "https://crbug.com/40569411"
  ],
  "safari": [
   "https://webkit.org/b/263834"
  ],
  "safari_ios": [
   "https://webkit.org/b/263834"
  ],
  "samsunginternet_android": [
   "https://crbug.com/40569411"
  ],
  "webview_android": [
   "https://crbug.com/40569411"
  ],
  "webview_ios": [
   "https://webkit.org/b/263834"
  ]
 },
 "baselineLowDateAsObject": "2022-03-14T00:00:00.000Z",
 "baselineHighDateAsObject": "2024-09-14T00:00:00.000Z"
}