{
  "css": {
    "properties": {
      "box-sizing": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/box-sizing",
          "spec_url": "https://drafts.csswg.org/css-sizing/#box-sizing",
          "tags": [
            "web-features:box-sizing"
          ],
          "support": {
            "chrome": [
              {
                "version_added": "10",
                "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
              },
              {
                "prefix": "-webkit-",
                "version_added": "1"
              }
            ],
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "12"
              },
              {
                "prefix": "-webkit-",
                "version_added": "12"
              }
            ],
            "firefox": [
              {
                "version_added": "29"
              },
              {
                "prefix": "-webkit-",
                "version_added": "49"
              },
              {
                "prefix": "-moz-",
                "version_added": "1",
                "notes": "Before Firefox 23, `box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
              }
            ],
            "firefox_android": "mirror",
            "ie": {
              "version_added": "8",
              "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
            },
            "oculus": "mirror",
            "opera": {
              "version_added": "7"
            },
            "opera_android": "mirror",
            "safari": [
              {
                "version_added": "5.1"
              },
              {
                "prefix": "-webkit-",
                "version_added": "3"
              }
            ],
            "safari_ios": [
              {
                "version_added": "6"
              },
              {
                "prefix": "-webkit-",
                "version_added": "1"
              }
            ],
            "samsunginternet_android": "mirror",
            "webview_android": [
              {
                "version_added": "4",
                "notes": "`box-sizing` is not respected when the height is calculated from [`window.getComputedStyle()`](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle)."
              },
              {
                "prefix": "-webkit-",
                "version_added": "2"
              }
            ],
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "border-box": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-box-sizing-border-box",
            "tags": [
              "web-features:box-sizing"
            ],
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": "≤11"
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "3"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "content-box": {
          "__compat": {
            "spec_url": "https://drafts.csswg.org/css-sizing/#valdef-box-sizing-content-box",
            "tags": [
              "web-features:box-sizing"
            ],
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": "mirror",
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": "≤11"
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "3"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}