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Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

If a -webkit-mask-image is specified, -webkit-mask-attachment determines whether the mask image's position is fixed within the viewport, or scrolls along with its containing block.

/* Keyword values */
-webkit-mask-attachment: scroll;
-webkit-mask-attachment: fixed;
-webkit-mask-attachment: local;

/* Multiple values */
-webkit-mask-attachment: scroll, local;
-webkit-mask-attachment: fixed, local, scroll;

/* Global values */
-webkit-mask-attachment: inherit;
-webkit-mask-attachment: initial;
-webkit-mask-attachment: unset;

Initial valuescroll
Applies toall elements
Inheritedno
Mediavisual
Computed valueas specified
Animation typediscrete
Canonical orderorder of appearance in the formal grammar of the values

Syntax

Values

scroll
If scroll is specified, the mask image scrolls within the viewport along with the block that contains the mask image.
fixed
If fixed is specified, the mask image does not scroll with its containing element, instead remaining stationary within the viewport.

Formal syntax

<attachment>#

where
<attachment> = scroll | fixed | local

Examples

body {
  -webkit-mask-image: url('images/mask.png');
  -webkit-mask-attachment: fixed;
}

Browser Compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Non-standard
Chrome No support ? — 24Edge ? Firefox No support NoIE No support NoOpera No support NoSafari Full support 4WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android No support NoOpera Android No support NoSafari iOS Full support 3.2Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

See also

-webkit-mask, -webkit-mask-clip, -webkit-mask-box-image, -webkit-mask-origin, -webkit-mask-image, -webkit-mask-composite, -webkit-mask-repeat

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最終更新者: fscholz,