border-image
A massive shorthand for using an image (or gradient) to style an element's borders. It combines source, slice, width, outset, and repeat into one powerful line of CSS.
It is documented as part of the CSS Backgrounds and Borders specification.
Syntax
/* Usage Example */
.premium-box {
/* source | slice | repeat */
border-image: linear-gradient(red, blue) 20% round;
border-width: 10px;
border-style: solid;
}
/* Syntax */
border-image: border-image-source;
border-image: border-image-slice;
border-image: border-image-width;
border-image: border-image-outset;
border-image: border-image-repeat;
/* Global values */
border-image: inherit;
border-image: initial;
border-image: revert;
border-image: revert-layer;
border-image: unset;border-image Browser support
Widely available
Since
2017 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2017.
16+
15+
6+
12+