border-image-source

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since February 2017.

The border-image-source CSS property sets the source image used to create an element's border image.

Try it

border-image-source: url("/shared-assets/images/examples/border-diamonds.png");

border-image-source: url("/shared-assets/images/examples/border-stars.png");

border-image-source: repeating-linear-gradient(
  45deg,
  transparent,
  #4d9f0c 20px
);

border-image-source: none;

<section id="default-example">
  <div id="example-element">This is a box with a border around it.</div>
</section>

#example-element {
  width: 80%;
  height: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 50px;
  background: #fff3d4;
  color: #000;
  border: 30px solid;
  border-image: url("/shared-assets/images/examples/border-diamonds.png") 30
    round;
  font-size: 1.2em;
}

The border-image-slice property is used to divide the source image into regions, which are then dynamically applied to the final border image.

Syntax

css

/* Keyword value */
border-image-source: none;

/* <image> values */
border-image-source: url(image.jpg);
border-image-source: linear-gradient(to top, red, yellow);

/* Global values */
border-image-source: inherit;
border-image-source: initial;
border-image-source: revert;
border-image-source: revert-layer;
border-image-source: unset;

Values

none: No border image is used. The appearance defined by border-style is displayed instead.
<image>: Image reference to use for the border.

Formal definition

Initial value	`none`
Applies to	all elements, except internal table elements when `border-collapse` is `collapse`. It also applies to `::first-letter`.
Inherited	no
Computed value	`none` or the image with its URI made absolute
Animation type	discrete

Formal syntax

border-image-source = 
  none     |
  <image>  

<image> = 
  <url>       |
  <gradient>  

<url> = 
  <url()>  |
  <src()>  

<url()> = 
  url( <string> <url-modifier>* )  |
  <url-token>                      

<src()> = 
  src( <string> <url-modifier>* )

Examples

Basic example

css

.box {
  border-image-source: url("image.png");
}

Specifications

Specification
CSS Backgrounds and Borders Module Level 3 # the-border-image-source

Browser compatibility

BCD tables only load in the browser