{
 "compat_features": [
  "css.selectors.future",
  "css.selectors.past"
 ],
 "description": "The :past and :future CSS pseudo-classes match prior or upcoming text track cues during media playback.",
 "description_html": "The <code>:past</code> and <code>:future</code> CSS pseudo-classes match prior or upcoming text track cues during media playback.",
 "group": [
  "selectors"
 ],
 "kind": "feature",
 "name": "Time-relative pseudo-selectors",
 "spec": [
  "https://w3c.github.io/webvtt/#the-past-and-future-pseudo-classes"
 ],
 "status": {
  "baseline": false,
  "by_compat_key": {
   "css.selectors.future": {
    "baseline": false,
    "support": {
     "chrome": "23",
     "chrome_android": "25",
     "edge": "79",
     "safari": "7",
     "safari_ios": "7"
    }
   },
   "css.selectors.past": {
    "baseline": false,
    "support": {
     "chrome": "23",
     "chrome_android": "25",
     "edge": "79",
     "safari": "7",
     "safari_ios": "7"
    }
   }
  },
  "support": {
   "chrome": "23",
   "chrome_android": "25",
   "edge": "79",
   "safari": "7",
   "safari_ios": "7"
  }
 },
 "id": "time-relative-selectors",
 "groups": [
  "selectors"
 ],
 "specs": [
  {
   "url": "https://w3c.github.io/webvtt/#the-past-and-future-pseudo-classes",
   "seriesComposition": "full",
   "shortname": "webvtt1",
   "series": {
    "shortname": "webvtt",
    "currentSpecification": "webvtt1",
    "title": "WebVTT: The Web Video Text Tracks Format",
    "shortTitle": "WebVTT: The Web Video Text Tracks Format",
    "releaseUrl": "https://www.w3.org/TR/webvtt/",
    "nightlyUrl": "https://w3c.github.io/webvtt/"
   },
   "seriesVersion": "1",
   "organization": "W3C",
   "groups": [
    {
     "name": "Timed Text Working Group",
     "url": "https://www.w3.org/AudioVideo/TT/"
    }
   ],
   "release": {
    "url": "https://www.w3.org/TR/webvtt1/",
    "status": "Candidate Recommendation Draft",
    "filename": "Overview.html"
   },
   "nightly": {
    "url": "https://w3c.github.io/webvtt/",
    "status": "Editor's Draft",
    "alternateUrls": [],
    "repository": "https://github.com/w3c/webvtt",
    "sourcePath": "index.bs",
    "filename": "index.html"
   },
   "title": "WebVTT: The Web Video Text Tracks Format",
   "source": "w3c",
   "shortTitle": "WebVTT: The Web Video Text Tracks Format",
   "categories": [
    "browser"
   ],
   "standing": "good",
   "tests": {
    "repository": "https://github.com/web-platform-tests/wpt",
    "testPaths": [
     "webvtt"
    ]
   },
   "fragment": "the-past-and-future-pseudo-classes"
  }
 ],
 "mdnUrls": [
  {
   "slug": "Web/CSS/Reference/Selectors/:future",
   "title": "`:future` CSS pseudo-class",
   "anchor": null,
   "url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Selectors/:future"
  },
  {
   "slug": "Web/CSS/Reference/Selectors/:past",
   "title": "`:past` CSS pseudo-class",
   "anchor": null,
   "url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Selectors/:past"
  }
 ],
 "standardPositions": [],
 "hasNegativeStandardPosition": false,
 "stateOfSurveys": [],
 "chromeUseCounters": {
  "percentageOfPageLoad": 0.00188003,
  "url": "https://chromestatus.com/metrics/webfeature/timeline/popularity/355"
 },
 "interop": [],
 "wpt": {
  "url": "https://wpt.fyi/results?q=feature:time-relative-selectors"
 },
 "developerSignals": {
  "url": "https://github.com/web-platform-dx/developer-signals/issues/25",
  "votes": 1
 },
 "bugs": {
  "firefox": [
   "https://bugzil.la/865401"
  ]
 },
 "useCases": null,
 "baselineLowDateAsObject": null,
 "baselineHighDateAsObject": null,
 "blockedOn": "Firefox",
 "blockedSince": "January 2020",
 "monthsBlocked": 80
}