border-image-width | CSS CSS Properties

Sets the thickness of the border image. This can be different from the actual 'border-width', allowing you to scale the decorative image pieces independently of the box boundaries.

Quick example

.thick-frame {
  border: 10px solid transparent;
  border-image-source: url('frame.png');
  border-image-slice: 30;
  /* Makes the border image 20px wide regardless of border-width */
  border-image-width: 20px;
}

Quick facts

Initial value

1

Inherited

Applies to

all elements (except table elements when collapse)

Animation type

byComputedValueType

Values

length-percentagenumberauto

border-image-width 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.

Safe to use without fallbacks.

View on caniuse.com → View on MDN → View on webstatus.dev → Learn more about Baseline →

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