repairsManager/node_modules/caniuse-db/features-json/calc.json

{
  "title":"calc() as CSS unit value",
  "description":"Method of allowing calculated values for length units, i.e. `width: calc(100% - 3em)`",
  "spec":"https://drafts.csswg.org/css-values-3/#calc-notation",
  "status":"cr",
  "links":[
    {
      "url":"https://hacks.mozilla.org/2010/06/css3-calc/",
      "title":"Mozilla Hacks article"
    },
    {
      "url":"https://developer.mozilla.org/en/docs/Web/CSS/calc",
      "title":"MDN Web Docs - calc"
    },
    {
      "url":"https://www.webplatform.org/docs/css/functions/calc",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"IE 9 - 11 and Edge do not support `width: calc()` on table cells. [Bug Report](https://web.archive.org/web/20171123043312/https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10982196/)"
    },
    {
      "description":"IE 9 - 11 don't render `box-shadow` when `calc()` is used for any of the values"
    },
    {
      "description":"IE10 crashes when a div with a property using `calc()` has a child with [same property with inherit](https://stackoverflow.com/questions/19423384/css-less-calc-method-is-crashing-my-ie10)."
    },
    {
      "description":"IE10, IE11, and Edge < 14 don't support using `calc()` inside a `transform`. [Bug report](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/104773/)"
    },
    {
      "description":"IE11 is reported to have trouble with `calc()` with nested expressions, e.g. `width: calc((100% - 10px) / 3);` (i.e. it rounds differently)"
    },
    {
      "description":"IE11 is reported to not support `calc()` correctly in [generated content](https://stackoverflow.com/questions/31323915/internet-explorer-incorrectly-calculates-percentage-height-for-generated-content)"
    },
    {
      "description":"IE11 does not support transitioning values set with `calc()`"
    },
    {
      "description":"Safari & iOS Safari (both 6 and 7) does not support viewport units (`vw`, `vh`, etc) in `calc()`."
    },
    {
      "description":"IE & Edge are reported to not support calc inside a 'flex'. (Not tested on older versions)\r\nThis example does not work: `flex: 1 1 calc(50% - 20px);`"
    },
    {
      "description":"IE does not support `calc()` on color functions. Example: `color: hsl(calc(60 * 2), 100%, 50%)`."
    },
    {
      "description":"Firefox <48 does not support `calc()` inside the `line-height`, `stroke-width`, `stroke-dashoffset`, and `stroke-dasharray` properties. [Bug report](https://bugzilla.mozilla.org/show_bug.cgi?id=594933)"
    },
    {
      "description":"Firefox <59 does not support `calc()` on color functions. Example: `color: hsl(calc(60 * 2), 100%, 50%)`. [Bug Report](https://bugzilla.mozilla.org/show_bug.cgi?id=984021)"
    },
    {
      "description":"Firefox <66 does not support `width: calc()` on table cells. [Bug Report](https://bugzilla.mozilla.org/show_bug.cgi?id=957915)"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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    "and_chr":{
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    "and_ff":{
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  },
  "notes":"Support can be somewhat emulated in older versions of IE using the non-standard `expression()` syntax.\r\n\r\nDue to the way browsers handle [sub-pixel rounding](https://johnresig.com/blog/sub-pixel-problems-in-css/) differently, layouts using `calc()` expressions may have unexpected results.",
  "notes_by_num":{
    "1":"Partial support in Android Browser 4.4 refers to the browser lacking the ability to multiply and divide values.",
    "2":"Partial support in IE9 refers to the browser crashing when used as a `background-position` value.",
    "3":"Partial support in IE10/IE11 refers to calc not working properly with various use cases mentioned in known issues"
  },
  "usage_perc_y":97.33,
  "usage_perc_a":0.95,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"csscalc",
  "chrome_id":"5765241438732288",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}