border-image-repeat

The border-image-repeat CSS property defines how the edge regions and middle region of a source image are adjusted to fit the dimensions of an element's border image. The middle region can be displayed by using the keyword "fill" in the border-image-slice property.

Syntax

/* Keyword value */
border-image-repeat: stretch;
border-image-repeat: repeat;
border-image-repeat: round;
border-image-repeat: space;

/* top and bottom | left and right */
border-image-repeat: round stretch;

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

The border-image-repeat property may be specified using one or two values chosen from the list of values below.

When one value is specified, it applies the same behavior on all four sides.
When two values are specified, the first applies to the top, middle, and bottom, the second to the left and right.

Values

stretch: The source image's edge regions are stretched to fill the gap between each border.
repeat: The source image's edge regions are tiled (repeated) to fill the gap between each border. Tiles may be clipped to achieve the proper fit.
round: The source image's edge regions are tiled (repeated) to fill the gap between each border. Tiles may be stretched to achieve the proper fit.
space: The source image's edge regions are tiled (repeated) to fill the gap between each border. Extra space will be distributed in between tiles to achieve the proper fit.

Formal definition

Initial value	stretch
Applies to	All elements, except internal table elements when border-collapse is collapse
Inherited	no
Computed value	two keywords, one per axis
Animation type	discrete

Formal syntax

[ stretch | repeat | round | space ]{1,2}

Examples

Repeating border images

CSS

#bordered {
  width: 12rem;
  margin-bottom: 1rem;
  padding: 1rem;
  border: 40px solid;
  border-image: url("border.png") 27;
  border-image-repeat: stretch; /* Can be changed in the live sample */
}

<div id="bordered">You can try out various border repetition rules on me!</div>

<select id="repetition">
  <option value="stretch">stretch</option>
  <option value="repeat">repeat</option>
  <option value="round">round</option>
  <option value="space">space</option>
  <option value="stretch repeat">stretch repeat</option>
  <option value="space round">space round</option>
</select>

const repetition = document.getElementById("repetition");
repetition.addEventListener("change", (evt) => {
  document.getElementById("bordered").style.borderImageRepeat =
    evt.target.value;
});

css properties border-image-repeat