{
 "compat_features": [
  "css.properties.z-index",
  "css.properties.z-index.auto",
  "css.properties.z-index.negative_values",
  "css.types.integer"
 ],
 "description": "The z-index CSS property orders overlapping elements, with higher values appearing in front of or on top of lower values.",
 "description_html": "The <code>z-index</code> CSS property orders overlapping elements, with higher values appearing in front of or on top of lower values.",
 "group": [
  "css"
 ],
 "kind": "feature",
 "name": "z-index",
 "spec": [
  "https://drafts.csswg.org/css2/#z-index"
 ],
 "status": {
  "baseline": "high",
  "baseline_high_date": "2018-01-29",
  "baseline_low_date": "2015-07-29",
  "by_compat_key": {
   "css.properties.z-index": {
    "baseline": "high",
    "baseline_high_date": "2018-01-29",
    "baseline_low_date": "2015-07-29",
    "support": {
     "chrome": "1",
     "chrome_android": "18",
     "edge": "12",
     "firefox": "1",
     "firefox_android": "4",
     "safari": "1",
     "safari_ios": "1"
    }
   },
   "css.properties.z-index.auto": {
    "baseline": "high",
    "baseline_high_date": "2018-01-29",
    "baseline_low_date": "2015-07-29",
    "support": {
     "chrome": "1",
     "chrome_android": "18",
     "edge": "12",
     "firefox": "1",
     "firefox_android": "4",
     "safari": "1",
     "safari_ios": "1"
    }
   },
   "css.properties.z-index.negative_values": {
    "baseline": "high",
    "baseline_high_date": "2018-01-29",
    "baseline_low_date": "2015-07-29",
    "support": {
     "chrome": "1",
     "chrome_android": "18",
     "edge": "12",
     "firefox": "3",
     "firefox_android": "4",
     "safari": "1",
     "safari_ios": "1"
    }
   },
   "css.types.integer": {
    "baseline": "high",
    "baseline_high_date": "2018-01-29",
    "baseline_low_date": "2015-07-29",
    "support": {
     "chrome": "1",
     "chrome_android": "18",
     "edge": "12",
     "firefox": "1",
     "firefox_android": "4",
     "safari": "1",
     "safari_ios": "1"
    }
   }
  },
  "support": {
   "chrome": "1",
   "chrome_android": "18",
   "edge": "12",
   "firefox": "3",
   "firefox_android": "4",
   "safari": "1",
   "safari_ios": "1"
  }
 },
 "id": "z-index",
 "groups": [
  "css"
 ],
 "specs": [
  {
   "url": "https://drafts.csswg.org/css2/#z-index",
   "seriesComposition": "full",
   "shortname": "CSS2",
   "series": {
    "shortname": "CSS",
    "currentSpecification": "CSS2",
    "title": "Cascading Style Sheets",
    "shortTitle": "CSS",
    "releaseUrl": "https://www.w3.org/TR/CSS2/",
    "nightlyUrl": "https://drafts.csswg.org/css2/"
   },
   "seriesVersion": "2",
   "formerNames": [
    "CSS21",
    "CSS22"
   ],
   "nightly": {
    "url": "https://drafts.csswg.org/css2/",
    "status": "Editor's Draft",
    "sourcePath": "css2/Overview.bs",
    "alternateUrls": [
     "https://w3c.github.io/csswg-drafts/css2/"
    ],
    "repository": "https://github.com/w3c/csswg-drafts",
    "filename": "index.html"
   },
   "title": "Cascading Style Sheets Level 2",
   "shortTitle": "CSS 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/CSS2/",
    "status": "Recommendation",
    "pages": [
     "https://www.w3.org/TR/CSS2/about.html",
     "https://www.w3.org/TR/CSS2/intro.html",
     "https://www.w3.org/TR/CSS2/conform.html",
     "https://www.w3.org/TR/CSS2/syndata.html",
     "https://www.w3.org/TR/CSS2/selector.html",
     "https://www.w3.org/TR/CSS2/cascade.html",
     "https://www.w3.org/TR/CSS2/media.html",
     "https://www.w3.org/TR/CSS2/box.html",
     "https://www.w3.org/TR/CSS2/visuren.html",
     "https://www.w3.org/TR/CSS2/visudet.html",
     "https://www.w3.org/TR/CSS2/visufx.html",
     "https://www.w3.org/TR/CSS2/generate.html",
     "https://www.w3.org/TR/CSS2/page.html",
     "https://www.w3.org/TR/CSS2/colors.html",
     "https://www.w3.org/TR/CSS2/fonts.html",
     "https://www.w3.org/TR/CSS2/text.html",
     "https://www.w3.org/TR/CSS2/tables.html",
     "https://www.w3.org/TR/CSS2/ui.html",
     "https://www.w3.org/TR/CSS2/aural.html",
     "https://www.w3.org/TR/CSS2/refs.html",
     "https://www.w3.org/TR/CSS2/changes.html",
     "https://www.w3.org/TR/CSS2/sample.html",
     "https://www.w3.org/TR/CSS2/zindex.html",
     "https://www.w3.org/TR/CSS2/propidx.html",
     "https://www.w3.org/TR/CSS2/grammar.html",
     "https://www.w3.org/TR/CSS2/indexlist.html"
    ],
    "filename": "Overview.html"
   },
   "source": "w3c",
   "categories": [
    "browser"
   ],
   "standing": "good",
   "tests": {
    "repository": "https://github.com/web-platform-tests/wpt",
    "testPaths": [
     "css/CSS2"
    ]
   },
   "fragment": "z-index"
  }
 ],
 "mdnUrls": [
  {
   "slug": "Web/CSS/Reference/Properties/z-index",
   "title": "`z-index` CSS property",
   "anchor": null,
   "url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/z-index"
  }
 ],
 "standardPositions": [],
 "hasNegativeStandardPosition": false,
 "stateOfSurveys": [],
 "chromeUseCounters": {},
 "interop": [],
 "wpt": {
  "url": "https://wpt.fyi/results?q=feature:z-index"
 },
 "developerSignals": null,
 "bugs": {},
 "baselineLowDateAsObject": "2015-07-29T00:00:00.000Z",
 "baselineHighDateAsObject": "2018-01-29T00:00:00.000Z"
}