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lepu-test-platform-web/node_modules/caniuse-db/features-json/calc.json

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{
"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://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":{
"ie":{
"5.5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"a #2",
"10":"a #3",
"11":"a #3"
},
"edge":{
"12":"y",
"13":"y",
"14":"y",
"15":"y",
"16":"y",
"17":"y",
"18":"y",
"79":"y",
"80":"y",
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"2":"n",
"3":"n",
"3.5":"n",
"3.6":"n",
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"5":"n",
"6":"n",
"7":"n",
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"6":"y x",
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"6.0-6.1":"y x",
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"14.0":"y"
},
"op_mini":{
"all":"n"
},
"android":{
"2.1":"n",
"2.2":"n",
"2.3":"n",
"3":"n",
"4":"n",
"4.1":"n",
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"4.4":"a #1",
"4.4.3-4.4.4":"a #1",
"81":"y"
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"bb":{
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"ie_mob":{
"10":"y",
"11":"y"
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"and_uc":{
"12.12":"y"
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"samsung":{
"4":"y",
"5.0-5.4":"y",
"6.2-6.4":"y",
"7.2-7.4":"y",
"8.2":"y",
"9.2":"y",
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},
"and_qq":{
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"baidu":{
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},
"kaios":{
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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":95.7,
"usage_perc_a":1.56,
"ucprefix":false,
"parent":"",
"keywords":"",
"ie_id":"csscalc",
"chrome_id":"5765241438732288",
"firefox_id":"",
"webkit_id":"",
"shown":true
}
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