{
  "css": {
    "types": {
      "length": {
        "__compat": {
          "description": "<code>&lt;length&gt;</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/length",
          "support": {
            "chrome": {
              "version_added": "1"
            },
            "chrome_android": {
              "version_added": "18"
            },
            "edge": {
              "version_added": "12"
            },
            "firefox": {
              "version_added": "1"
            },
            "firefox_android": {
              "version_added": "4"
            },
            "ie": {
              "version_added": "3"
            },
            "opera": {
              "version_added": "3.5"
            },
            "opera_android": {
              "version_added": "10.1"
            },
            "safari": {
              "version_added": "1"
            },
            "safari_ios": {
              "version_added": "1"
            },
            "samsunginternet_android": {
              "version_added": "1.0"
            },
            "webview_android": {
              "version_added": "≤37"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "Q": {
          "__compat": {
            "description": "<code>Q</code> unit",
            "support": {
              "chrome": {
                "version_added": "63"
              },
              "chrome_android": {
                "version_added": "63"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "49"
              },
              "firefox_android": {
                "version_added": "49"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "50"
              },
              "opera_android": {
                "version_added": "46"
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": "8.0"
              },
              "webview_android": {
                "version_added": "63"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "cap": {
          "__compat": {
            "description": "<code>cap</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "ch": {
          "__compat": {
            "description": "<code>ch</code> unit",
            "support": {
              "chrome": {
                "version_added": "27"
              },
              "chrome_android": {
                "version_added": "27"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1",
                "notes": [
                  "From Firefox 1 to Firefox 3, <code>ch</code> was the width of the <em>M</em> character.",
                  "From Firefox 1 to Firefox 3, <code>ch</code> did not work with <a href='https://developer.mozilla.org/docs/Web/CSS/border-width' ><code>border-width</code></a> and <a href='https://developer.mozilla.org/docs/Web/CSS/outline-width'><code>outline-width</code></a> CSS properties."
                ]
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "9"
              },
              "opera": {
                "version_added": "20"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "7"
              },
              "safari_ios": {
                "version_added": "7"
              },
              "samsunginternet_android": {
                "version_added": "1.5"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "ex": {
          "__compat": {
            "description": "<code>ex</code> unit",
            "support": {
              "chrome": {
                "version_added": "1"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "1"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "4"
              },
              "opera": {
                "version_added": "3.5"
              },
              "opera_android": {
                "version_added": "10.1"
              },
              "safari": {
                "version_added": "1"
              },
              "safari_ios": {
                "version_added": "1"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "1"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "ic": {
          "__compat": {
            "description": "<code>ic</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "lh": {
          "__compat": {
            "description": "<code>lh</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "mozmm": {
          "__compat": {
            "description": "<code>mozmm</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "4",
                "version_removed": "59"
              },
              "firefox_android": {
                "version_added": "4",
                "version_removed": "59"
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": false,
              "deprecated": false
            }
          }
        },
        "rem": {
          "__compat": {
            "description": "<code>rem</code> unit",
            "support": {
              "chrome": {
                "version_added": "4"
              },
              "chrome_android": {
                "version_added": "18"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "3.6"
              },
              "firefox_android": {
                "version_added": "4"
              },
              "ie": {
                "version_added": "9"
              },
              "opera": {
                "version_added": "11.6"
              },
              "opera_android": {
                "version_added": "12"
              },
              "safari": {
                "version_added": "5"
              },
              "safari_ios": {
                "version_added": "4"
              },
              "samsunginternet_android": {
                "version_added": "1.0"
              },
              "webview_android": {
                "version_added": "2"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "rlh": {
          "__compat": {
            "description": "<code>rlh</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vb": {
          "__compat": {
            "description": "<code>vb</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vh": {
          "__compat": {
            "description": "<code>vh</code> unit",
            "support": {
              "chrome": {
                "version_added": "20"
              },
              "chrome_android": {
                "version_added": "25"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "firefox_android": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "ie": {
                "version_added": "9"
              },
              "opera": {
                "version_added": "20"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "6"
              },
              "safari_ios": {
                "version_added": "6"
              },
              "samsunginternet_android": {
                "version_added": "1.5"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vi": {
          "__compat": {
            "description": "<code>vi</code> unit",
            "support": {
              "chrome": {
                "version_added": false
              },
              "chrome_android": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": false
              },
              "firefox_android": {
                "version_added": false
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "opera_android": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              },
              "safari_ios": {
                "version_added": false
              },
              "samsunginternet_android": {
                "version_added": false
              },
              "webview_android": {
                "version_added": false
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vmax": {
          "__compat": {
            "description": "<code>vmax</code> unit",
            "support": {
              "chrome": {
                "version_added": "26"
              },
              "chrome_android": {
                "version_added": "26"
              },
              "edge": {
                "version_added": "16"
              },
              "firefox": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "firefox_android": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "ie": {
                "version_added": false
              },
              "opera": {
                "version_added": "15"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "6.1"
              },
              "safari_ios": {
                "version_added": "6.1"
              },
              "samsunginternet_android": {
                "version_added": "1.5"
              },
              "webview_android": {
                "version_added": "1.5"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vmin": {
          "__compat": {
            "description": "<code>vmin</code> unit",
            "support": {
              "chrome": {
                "version_added": "26"
              },
              "chrome_android": {
                "version_added": "26"
              },
              "edge": [
                {
                  "version_added": "12"
                },
                {
                  "alternative_name": "vm",
                  "version_added": "12"
                }
              ],
              "firefox": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "firefox_android": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "ie": [
                {
                  "version_added": "10"
                },
                {
                  "alternative_name": "vm",
                  "version_added": "9"
                }
              ],
              "opera": {
                "version_added": "15"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "6.1"
              },
              "safari_ios": {
                "version_added": "6.1"
              },
              "samsunginternet_android": {
                "version_added": "1.5"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "vw": {
          "__compat": {
            "description": "<code>vw</code> unit",
            "support": {
              "chrome": {
                "version_added": "20"
              },
              "chrome_android": {
                "version_added": "25"
              },
              "edge": {
                "version_added": "12"
              },
              "firefox": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "firefox_android": {
                "version_added": "19",
                "notes": "Starting with version 21, viewport-percentage lengths are invalid in <code>@page</code>."
              },
              "ie": {
                "version_added": "9"
              },
              "opera": {
                "version_added": "20"
              },
              "opera_android": {
                "version_added": "14"
              },
              "safari": {
                "version_added": "6"
              },
              "safari_ios": {
                "version_added": "6"
              },
              "samsunginternet_android": {
                "version_added": "1.5"
              },
              "webview_android": {
                "version_added": "≤37"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}