mask-border-slice
Specifies how to 'slice' the mask border image into nine regions (four corners, four edges, and a center). This allows the edges to scale while keeping the corners fixed.
Quick example
.masked-element {
/* Slices the mask image 30px from each edge */
mask-border-slice: 30;
}Quick facts
Initial value
0Inherited
No
Applies to
all elements and SVG container elements
Animation type
discrete
Values
fillmask-border-slice Browser Support
Limited availability92% global usage
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Not ready for production without a fallback.
17.2+