{
  "css": {
    "selectors": {
      "first-child": {
        "__compat": {
          "description": "<code>:first-child</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:first-child",
          "support": {
            "chrome": {
              "version_added": "4"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "3"
            },
            "firefox_android": {
              "version_added": "4"
            },
            "ie": {
              "version_added": "7",
              "notes": [
                "Internet Explorer 7 doesn't update <code>:first-child</code> styles when elements are added dynamically.",
                "In Internet Explorer 8, if an element is inserted dynamically by clicking on a link, then the <code>:first-child</code> style isn't applied until the link loses focus."
              ]
            },
            "opera": {
              "version_added": "9.5"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "3.1"
            },
            "safari_ios": {
              "version_added": "4"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": "≤37"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "no_parent_required": {
          "__compat": {
            "description": "Matches elements with no parent",
            "support": {
              "chrome": {
                "version_added": "57"
              },
              "chrome_android": {
                "version_added": "57"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": {
                "version_added": "52"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "44"
              },
              "opera_android": {
                "version_added": "43"
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": "7.0"
              },
              "webview_android": {
                "version_added": "57"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}