css/properties/font-feature-settings.json

{
  "css": {
    "properties": {
      "font-feature-settings": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-feature-settings",
          "spec_url": "https://drafts.csswg.org/css-fonts/#font-feature-settings-prop",
          "tags": [
            "web-features:font-feature-settings"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "48"
              },
              {
                "prefix": "-webkit-",
                "version_added": "16"
              }
            ],
            "chrome_android": "mirror",
            "edge": {
              "version_added": "15"
            },
            "firefox": [
              {
                "version_added": "34",
                "notes": "The [ISO/IEC CD 14496-22 3rd edition](https://mpeg.chiariglione.org/standards/mpeg-4/open-font-format/text-isoiec-cd-14496-22-3rd-edition) suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the [MathML](https://developer.mozilla.org/docs/Web/MathML) rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS."
              },
              {
                "prefix": "-webkit-",
                "version_added": "129",
                "notes": "From Firefox 129 the `-webkit-font-feature-settings` alias has been added to support sites that are still supporting the vendor prefix."
              },
              {
                "prefix": "-moz-",
                "version_added": "15",
                "notes": "From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See [OpenType Font Feature support in Firefox 4](https://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/)."
              }
            ],
            "firefox_android": "mirror",
            "ie": {
              "version_added": "10"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "9.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "4.4"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "normal": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-fonts/#font-feature-settings-normal-value",
            "tags": [
              "web-features:font-feature-settings"
            ],
            "support": {
              "chrome": {
                "version_added": "16"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "15"
              },
              "firefox": {
                "version_added": "15"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": "≤11"
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "9.1"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}