css/selectors/hostfunction.json

{
  "css": {
    "selectors": {
      "hostfunction": {
        "__compat": {
          "description": "<code>:host()</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:host()",
          "spec_url": "https://drafts.csswg.org/css-scoping/#host-selector",
          "support": {
            "chrome": {
              "version_added": "54"
            },
            "chrome_android": "mirror",
            "edge": "mirror",
            "firefox": {
              "version_added": "63"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "10",
              "notes": "Certain CSS selectors do not work (:host &gt; .local-child) and styling slotted content (::slotted) is buggy."
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}