border-image-repeat

The border-image-repeat CSS property defines how the edge regions of a source image are adjusted to fit the dimensions of an element's border image.

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

/* vertical | horizontal */
border-image-repeat: round stretch;

/* Global values */
border-image-repeat: inherit;
border-image-repeat: initial;
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 and bottom, the second to the left and right.

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.

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

CSS

#bordered {
  width: 12rem;
  margin-bottom: 1rem;
  padding: 1rem;
  border: 40px solid;
  border-image: url("https://mdn.mozillademos.org/files/4127/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>

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

Results

• Backgrounds and borders
• Learn CSS: Backgrounds and borders