Splitting Image Gallery – SplittingImage.js

Category: Gallery , Javascript , Recommended | May 26, 2018
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Last Update:May 26, 2018


Splitting Image Gallery – SplittingImage.js


A splitting image gallery made using SplittingImage.js that displays the enlarged image with a splitting effect when hovering over.

The SplittingImage.js is a pure JavaScript library used to split an image with the specified number of rows & cols using JavaScript and CSS3.

How to use it:

Insert the splitting-image.css and splitting-image.js into the document.

<link rel="stylesheet" href="splitting-image.css">
<script src="splitting-image.js"></script>

Add thumbnails and full-size images to the page.

<div class="tiler">
  <img src="1.jpg" />
  <div class="tiler-overlay" data-image="1.jpg"></div>
<div class="tiler">
  <img src="2.jpg" />
  <div class="tiler-overlay" data-image="2.jpg"></div>
<div class="tiler">
  <img src="3.jpg" />
  <div class="tiler-overlay" data-image="3.jpg"></div>

The necessary CSS for the gallery.

.tiler {
  position: relative;
  display: inline-block;
  cursor: pointer;
  visibility: hidden;
  width: 33.3%;
  margin: auto;
.tiler img {
  display: block;
  margin: auto;
  max-width: 100%;
  visibility: visible;
.tiler-overlay {
  background-position: center center;
  margin: auto;
  position: fixed;
  top: 1em;
  bottom: 1em;
  left: 1em;
  right: 1em;
  max-width: 1000px;
  max-height: 600px;
  -webkit-perspective: 30px;
          perspective: 30px;
.tiler-overlay .split-cell {
  pointer-events: none;
  opacity: 0;
  -webkit-transform: translateZ(-15px);
          transform: translateZ(-15px);
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  transition-property: opacity, -webkit-transform;
  transition-property: transform, opacity;
  transition-property: transform, opacity, -webkit-transform;
  transition-duration: 0.5s, 0.4s;
  transition-timing-function: cubic-bezier(0.65, 0.01, 0.15, 1.33);
  /* The center character index */
  --center-x: calc((var(--col-total) - 1) / 2);
  --center-y: calc((var(--row-total) - 1) / 2);
  /* Offset from center, positive & negative */
  --offset-x: calc(var(--col-index) - var(--center-x));
  --offset-y: calc(var(--row-index) - var(--center-y));
  /* Absolute distance from center, only positive */
  --distance-x: calc(
    (var(--offset-x) * var(--offset-x)) / var(--center-x)
  /* Absolute distance from center, only positive */
  --distance-y: calc(
    (var(--offset-y) * var(--offset-y)) / var(--center-y)
  transition-delay: calc( 0.1s * var(--distance-y) + 0.1s * var(--distance-x) );
.tiler-overlay {
  z-index: 2;
.tiler:hover .split-cell {
  -webkit-transform: scale(1);
          transform: scale(1);
  opacity: 1;

Initialize the SplittingImage and specify the number of rows and cols.

SplittingImage(‘.tiler-overlay’, { rows: 3, cols: 3 });

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