Thumbnails

lightGallery allows you to create animated thumbnails for your gallery with the help of thumbnail plugin. Thumbnails plugin supports touch swipe navigation on touchscreen devices as well as mouse drag for desktops. it allows users to navigate between slides by clicking on the thumbnails. Thumbnails plugin also allows you to load thumbnails automatically for YouTube, Vimeo, and other video sources. Find out more options in the docs

Animated thumbnails

HTML Structure
<div id="animated-thumbnails">
    <a href="img/img1.jpg">
        <img src="img/thumb1.jpg" />
    </a>
    <a href="img/img2.jpg">
        <img src="img/thumb2.jpg" />
    </a>
    ...
</div>
JavaScript
lightGallery(document.getElementById('animated-thumbnails-gallery'), {
    thumbnail: true,
});

Static thumbnails

HTML Structure
<div id="animated-thumbnails-gallery">
    <a href="img/img1.jpg">
        <img src="img/thumb1.jpg" />
    </a>
    <a href="img/img2.jpg">
        <img src="img/thumb2.jpg" />
    </a>
    ...
</div>
JavaScript
lightGallery(document.getElementById('static-thumbnails'), {
    animateThumb: false,
    zoomFromOrigin: false,
    allowMediaOverlap: true,
    toggleThumb: true,
});

Customize more

You can customize the look and feel of the thumbnails however you want just by updating the css files. Let’s see how we can place the thumbnails on the right hand side of the slide.

HTML Structure
<div id="customize-thumbnails-gallery">
    <a href="img/img1.jpg">
        <img src="img/thumb1.jpg" />
    </a>
    <a href="img/img2.jpg">
        <img src="img/thumb2.jpg" />
    </a>
    ...
</div>
JavaScript
lightGallery(document.getElementById('customize-thumbnails-gallery'), {
    // Add a custom class to apply style only for the particular gallery
    addClass: 'lg-custom-thumbnails',

    // Remove the starting animations.
    // This can be done by overriding CSS as well
    appendThumbnailsTo: '.lg-outer',

    animateThumb: false,
    allowMediaOverlap: true,
});
CSS
.lg-custom-thumbnails {
    &.lg-outer {
        width: auto;
        // Set space for the container to occupy thumbnails
        right: 225px;

        // Add some spacing on the left to match with the right hand side spacing
        left: 10px;

        .lg-thumb-outer {
            // Set the position of the thumbnails
            left: auto;
            top: 0;
            width: 225px;
            bottom: 0;
            position: fixed;
            right: 0;

            // Reset max height
            max-height: none;

            // Customize the layout (Optional)
            background-color: #999;
            padding-left: 5px;
            padding-right: 5px;
            margin: 0 -10px;
            overflow-y: auto;

            // Update transition values
            // By default thumbnails animates from bottom to top
            // Change that from right to left.
            // Also, add a tiny opacity transition to look better
            transform: translate3d(30%, 0, 0);
            opacity: 0;
            will-change: transform opacity;
            transition: transform 0.15s cubic-bezier(0, 0, 0.25, 1) 0s, cubic-bezier(
                        0,
                        0,
                        0.25,
                        1
                    ) 0.15s;
        }

        &.lg-thumb-open {
            .lg-thumb-outer {
                transform: translate3d(0, 0, 0);
                opacity: 1;
            }
        }

        // Add hove effect (Optional)
        .lg-thumb-item {
            filter: grayscale(100%);
            will-change: filter;
            transition: filter 0.12s ease-in, border-color 0.12s ease;
            &:hover,
            &.active {
                filter: grayscale(0);
                border-color: #545454;
            }
        }

        .lg-thumb {
            padding: 5px 0;
        }
    }
}

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