-webkit-mask-attachment

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;

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 definition

Formal syntax

<attachment>#
where 
<attachment> = scroll | fixed | local

Examples

Fixing a mask image to the viewport

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

Specifications

Not part of any standard.

Browser compatibility

See also

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