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{
"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":"https://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 Web Docs - background-attachment"
}
],
"bugs":[
{
"description":"iOS has an issue preventing `background-attachment: fixed` from being used with `background-size: cover` - [see details](https://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. "
},
{
"description":"Firefox does not appear to support the `local` value when applied on a `textarea` element."
}
],
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"notes":"Most mobile devices have a delay in updating the background position after scrolling a page with `fixed` backgrounds.",
"notes_by_num":{
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"3":"Only supports `local` when `-webkit-overflow-scrolling: touch` is _not_ used",
"4":"Does not support `fixed`, and due [to a bug](https://bugs.chromium.org/p/chromium/issues/detail?id=627037) only supports `local` if a `border-radius` is set on the element.",
"5":"Broken support of `fixed` and `local` when scrolling an outer scroll container. Related [to a bug](https://bugs.webkit.org/show_bug.cgi?id=219324)."
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