lightgallery/scss/_lg-theme-default.scss

.lg-container {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue',
        Arial, 'Noto Sans', 'Liberation Sans', sans-serif, 'Apple Color Emoji',
        'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}
// default theme
.lg-next,
.lg-prev {
    background-color: $lg-next-prev-bg;
    border-radius: $lg-border-radius-base;
    color: $lg-next-prev-color;
    cursor: pointer;
    display: block;
    font-size: 22px;
    margin-top: -10px;
    padding: 8px 10px 9px;
    position: absolute;
    top: 50%;
    z-index: $zindex-controls;
    outline: none;
    border: none;

    &.disabled {
        opacity: 0 !important;
        cursor: default;
    }

    &:hover:not(.disabled) {
        color: $lg-next-prev-hover-color;
    }
    .lg-single-item & {
        display: none;
    }
}

.lg-next {
    right: 20px;

    &:before {
        content: '\e095';
    }
}

.lg-prev {
    left: 20px;

    &:after {
        content: '\e094';
    }
}

@include keyframes(lg-right-end) {
    0% {
        left: 0;
    }

    50% {
        left: -30px;
    }

    100% {
        left: 0;
    }
}

@include keyframes(lg-left-end) {
    0% {
        left: 0;
    }

    50% {
        left: 30px;
    }

    100% {
        left: 0;
    }
}

.lg-outer {
    &.lg-right-end {
        .lg-object {
            @include animation(lg-right-end 0.3s);
            position: relative;
        }
    }

    &.lg-left-end {
        .lg-object {
            @include animation(lg-left-end 0.3s);
            position: relative;
        }
    }
}

// lg toolbar
.lg-toolbar {
    z-index: $zindex-toolbar;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
    .lg-media-overlap & {
        background-image: $lg-toolbar-bg;
    }

    .lg-icon {
        color: $lg-toolbar-icon-color;
        cursor: pointer;
        float: right;
        font-size: 24px;
        height: 47px;
        line-height: 27px;
        padding: 10px 0;
        text-align: center;
        width: 50px;
        text-decoration: none !important;
        outline: medium none;
        will-change: color;
        @include transition(color 0.2s linear);
        background: none;
        border: none;
        box-shadow: none;
        &.lg-icon-18 {
            font-size: 18px;
        }
        &:hover {
            color: $lg-toolbar-icon-hover-color;
        }
    }

    .lg-close {
        &:after {
            content: '\e070';
        }
    }
    .lg-maximize {
        font-size: 22px;
        &:after {
            content: '\e90a';
        }
    }

    .lg-download {
        &:after {
            content: '\e0f2';
        }
    }
}

// lightGallery title
.lg-sub-html {
    color: $lg-sub-html-color;
    font-size: 16px;
    padding: 10px 40px;
    text-align: center;
    z-index: $zindex-subhtml;
    opacity: 0;
    @include transition(opacity 0.2s ease-out 0s);

    h4 {
        margin: 0;
        font-size: 13px;
        font-weight: bold;
    }

    p {
        font-size: 12px;
        margin: 5px 0 0;
    }
    a {
        color: inherit;
        &:hover {
            text-decoration: underline;
        }
    }
    .lg-media-overlap & {
        background-image: $lg-sub-html-bg;
    }
    .lg-item & {
        position: absolute;
        bottom: 0;
        right: 0;
        left: 0;
    }
}

.lg-error-msg {
    font-size: 14px;
    color: #999;
}

// lg image counter
.lg-counter {
    color: $lg-icon-color;
    display: inline-block;
    font-size: $lg-counter-font-size;
    padding-left: 20px;
    padding-top: 12px;
    height: 47px;
    vertical-align: middle;
}

.lg-closing {
    .lg-toolbar,
    .lg-prev,
    .lg-next,
    .lg-sub-html {
        opacity: 0;
        @include transitionCustom(
            transform 0.08 cubic-bezier(0, 0, 0.25, 1) 0s,
            opacity 0.08 cubic-bezier(0, 0, 0.25, 1) 0s,
            color 0.08 linear
        );
    }
}

// Starting effect
body:not(.lg-from-hash) {
    .lg-outer {
        &.lg-start-zoom {
            .lg-item:not(.lg-zoomable) {
                .lg-img-wrap,
                .lg-video-cont {
                    opacity: 0;
                    @include transform(scale3d(0.5, 0.5, 0.5));
                    will-change: transform, opacity;
                    @include transitionCustom(
                        transform 250ms cubic-bezier(0, 0, 0.25, 1) 0s,
                        opacity 250ms cubic-bezier(0, 0, 0.25, 1) !important
                    );
                }
                &.lg-complete {
                    .lg-img-wrap,
                    .lg-video-cont {
                        opacity: 1;
                        @include transform(scale3d(1, 1, 1));
                    }
                }
            }
        }
    }
}

.lg-icon {
    &:focus-visible {
        color: #fff;
        border-radius: 3px;
        outline: 1px dashed rgba(255, 255, 255, 0.6);
    }
}
.lg-toolbar {
    .lg-icon {
        &:focus-visible {
            border-radius: 8px;
            outline-offset: -5px;
        }
    }
}