{
  "mathml": {
    "elements": {
      "mi": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/MathML/Reference/Element/mi",
          "spec_url": "https://w3c.github.io/mathml-core/#dfn-mi",
          "tags": [
            "web-features:mathml"
          ],
          "support": {
            "chrome": {
              "version_added": "109"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "6"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "mathvariant": {
          "__compat": {
            "spec_url": "https://w3c.github.io/mathml-core/#dfn-mathvariant",
            "tags": [
              "web-features:mathml"
            ],
            "support": {
              "chrome": {
                "version_added": "109"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "70",
                "impl_url": "https://hg.mozilla.org/mozilla-central/rev/3b30c8db537c",
                "notes": [
                  "The only allowed value in MathML Core is 'normal'. Firefox enables a number of other deprecated values from the MathML 3 specification (see [bug 1845461](https://bugzil.la/1845461)).",
                  "Implementation does not rely on the CSS approach described in MathML Core (via `text-transform`."
                ]
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "10",
                "impl_url": "https://trac.webkit.org/changeset/203679",
                "notes": [
                  "The only allowed value in MathML Core is 'normal'. Safari enables a number of other deprecated values from the MathML 3 specification.",
                  "Implementation does not rely on the CSS approach described in MathML Core (via `text-transform`."
                ]
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}