unboundedpress/public/lightgallery/sass/lg-zoom.scss

.lg-outer {
    // reset transition duration
    &.lg-css3.lg-zoom-dragging {
        .lg-item.lg-complete.lg-zoomable {
            .lg-img-wrap, .lg-image {
                @include transition-duration(0s);
            }
        }
    }

    .lg-item.lg-complete.lg-zoomable{

        .lg-img-wrap {
            @include transitionCustom(transform $zoom-transition-duration ease 0s);
            @include translate3d(0, 0, 0);
        }

        .lg-image {
            // Translate required for zoom
            @include scale3d(1, 1, 1);
            @include transitionCustom(transform $zoom-transition-duration ease 0s, opacity 0.15s !important);
            @include transform-origin(0 0);
        }
    }

}

// zoom buttons
#lg-zoom-in {
    &:after {
        content: "\e311";
    }
}

#lg-zoom-out {
    opacity: 0.5;
    pointer-events: none;

    &:after {
        content: "\e312";
    }

    .lg-zoomed & {
        opacity: 1;
        pointer-events: auto;
    }
}