{
  "title":"CSS background-attachment",
  "description":"Method of defining how a background image is attached to a scrollable element. Values include `scroll` (default), `fixed` and `local`.",
  "spec":"http://www.w3.org/TR/css3-background/#the-background-attachment",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/background-attachment",
      "title":"MDN article"
    }
  ],
  "bugs":[
    {
      "description":"iOS has an issue preventing `background-position: fixed` from being used with `background-size: cover` - [see details](http://stackoverflow.com/questions/21476380/background-size-on-ios)"
    },
    {
      "description":"Chrome has an issue that occurs when using the will-change property on a selector which also has `background-attachment: fixed` defined. It causes the image to get cut off and gain whitespace around it. "
    }
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
    "ie":{
      "5.5":"a #1",
      "6":"a #1",
      "7":"a #1",
      "8":"a #1",
      "9":"y",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y"
    },
    "firefox":{
      "2":"a #1",
      "3":"a #1",
      "3.5":"a #1",
      "3.6":"a #1",
      "4":"a #1",
      "5":"a #1",
      "6":"a #1",
      "7":"a #1",
      "8":"a #1",
      "9":"a #1",
      "10":"a #1",
      "11":"a #1",
      "12":"a #1",
      "13":"a #1",
      "14":"a #1",
      "15":"a #1",
      "16":"a #1",
      "17":"a #1",
      "18":"a #1",
      "19":"a #1",
      "20":"a #1",
      "21":"a #1",
      "22":"a #1",
      "23":"a #1",
      "24":"a #1",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y"
    },
    "chrome":{
      "4":"y",
      "5":"y",
      "6":"y",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y",
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y"
    },
    "safari":{
      "3.1":"a #1",
      "3.2":"a #1",
      "4":"a #1",
      "5":"y",
      "5.1":"y",
      "6":"y",
      "6.1":"y",
      "7":"y",
      "7.1":"y",
      "8":"y",
      "9":"y",
      "9.1":"y",
      "10":"y",
      "10.1":"y",
      "TP":"y"
    },
    "opera":{
      "9":"a #1",
      "9.5-9.6":"a #1",
      "10.0-10.1":"a #1",
      "10.5":"y",
      "10.6":"y",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "11.6":"y",
      "12":"y",
      "12.1":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y"
    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"a #2 #3",
      "6.0-6.1":"a #2 #3",
      "7.0-7.1":"a #2 #3",
      "8":"a #2 #3",
      "8.1-8.4":"a #2 #3",
      "9.0-9.2":"a #2 #3",
      "9.3":"a #2 #3",
      "10.0-10.2":"a #2 #3"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"a #1",
      "4.2-4.3":"a #1",
      "4.4":"n",
      "4.4.3-4.4.4":"n",
      "53":"n"
    },
    "bb":{
      "7":"a #2",
      "10":"a #2"
    },
    "op_mob":{
      "10":"a #1",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "12":"y",
      "12.1":"y",
      "37":"y"
    },
    "and_chr":{
      "56":"a #4"
    },
    "and_ff":{
      "51":"y"
    },
    "ie_mob":{
      "10":"y",
      "11":"y"
    },
    "and_uc":{
      "11":"a #1"
    },
    "samsung":{
      "4":"n"
    },
    "and_qq":{
      "1.2":"y"
    }
  },
  "notes":"Most mobile devices have a delay in updating the background position after scrolling a page with `fixed` backgrounds.",
  "notes_by_num":{
    "1":"Partial support refers to supporting `fixed` but not `local`",
    "2":"Partial support refers to supporting `local` but not `fixed`",
    "3":"Only supports `local` when `-webkit-overflow-scrolling: touch` is _not_ used",
    "4":"Does not support `fixed`, and due [to a bug](https://crbug.com/627037) only supports `local` if a `border-radius` is set on the element."
  },
  "usage_perc_y":43.5,
  "usage_perc_a":45.91,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}