mask-border-source
The mask-border-source
CSS property sets the source image used to create an element's mask border.
The mask-border-slice
property is used to divide the source image into regions, which are then dynamically applied to the final mask border.
Syntax
css
/* Keyword value */
mask-border-source: none;
/* <image> values */
mask-border-source: url(image.jpg);
mask-border-source: linear-gradient(to top, red, yellow);
/* Global values */
mask-border-source: inherit;
mask-border-source: initial;
mask-border-source: revert;
mask-border-source: revert-layer;
mask-border-source: unset;
Values
none
-
No mask border is used.
<image>
-
Image reference to use for the mask border.
Formal definition
Initial value | none |
---|---|
Applies to | all elements; In SVG, it applies to container elements excluding the <defs> element and all graphics elements |
Inherited | no |
Computed value | as specified, but with url() values made absolute |
Animation type | discrete |
Formal syntax
mask-border-source =
none |
<image>
<image> =
<url> |
<gradient>
<url> =
url( <string> <url-modifier>* ) |
src( <string> <url-modifier>* )
Examples
Basic usage
This property doesn't appear to be supported anywhere yet. When it eventually starts to be supported, it will serve to define the source of the border mask.
css
mask-border-source: url(image.jpg);
Chromium-based browsers support an outdated version of this property — mask-box-image-source
— with a prefix:
css
-webkit-mask-box-image-source: url(image.jpg);
Note: The mask-border
page features a working example (using the out-of-date prefixed border mask properties supported in Chromium), so you can get an idea of the effect.
Specifications
Specification |
---|
CSS Masking Module Level 1 # the-mask-border-source |
Browser compatibility
BCD tables only load in the browser