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
fill mask-border-slice Browser Support
Widely available Since 2015 92% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.
Safe to use without fallbacks.
1+
17.2+
79+