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CSS border-image-outset Property

Description

The border-image-outset property specifies the amount by which the border image area extends beyond the border box. If it has four values, they set the outsets on the top, right, bottom and left sides in that order. If the left is missing, it is the same as the right; if the bottom is missing, it is the same as the top; if the right is missing, it is the same as the top.

Initial value
0
Applies to
All elements
Inherited
No
Media
Visual
Computed value
Four values, each a number or <length> made absolute
Animatable
No
CSS Version
CSS3
JavaScript syntax
object.style.borderImageOutset

Syntax

border-image-outset: [ <length> | <number> ]{1,4}

Values

  • <length>Floating-point number, followed by an absolute units designator (cm, mm, in, pt, or pc) or a relative units designator (em, ex, or px). Negative numbers are not allowed.
  • <number>Represents a multiple of the corresponding border-width. Negative values are not allowed for any of the 'border-image-outset' values.

Example

<div>Example of the border-image-outset property</div>
div {
   border: 1em solid blue;
   border-image-source: url("images/border.png");
   border-image-repeat: round;
   border-image-width: 27px;
   border-image-slice: 27;
   border-image-outset: 20px;
   height: 70px;
   padding: 20px;
   margin: 20px;
   width: 200px;
}

Browser Support

Desktop
Explorer Edge Chrome Firefox Opera Safari
11121515156
Tablets / Mobile
Android Chrome Firefox Opera Safari Samsung
4.418151461.0

Last updated by CSSPortal on: 12th October 2019


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