#photoContainer {
    -webkit-column-count: 4;
    -moz-column-count: 4;
    column-count: 4;
    -webkit-column-gap: 15px;
    -moz-column-gap: 15px;
    column-gap: 15px;
}

    #photoContainer img {
        width: 100%;
    }

.image-preview-container {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    transition: all 0.3s;
    display: none;
    color: #fff;
    will-change: transform;
    user-select: none;
}

    .image-preview-container.show {
        animation: show 0.5s forwards;
        -webkit-animation: show 0.5s forwards;
    }

    .image-preview-container.hiding .preview-header {
        animation: opacityAnimation 0.5s forwards reverse;
    }

    .image-preview-container img {
        transition: all 0.5s;
        transform: translateX(var(--offsetX)) translateY(var(--offsetY)) translateZ(0) scale(var(--scale), var(--scale)) rotate(var(--rotate));
    }

    .image-preview-container .image-container {
        width: 100% !important;
        height: 100% !important;
        overflow: hidden;
    }

    .image-preview-container .preview-header {
        height: 60px;
        background: rgba(0, 0, 0, 0.2);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 2vw 0 1vw;
        position: relative;
        z-index: 90;
        animation: opacityAnimation 0.5s forwards;
    }

        .image-preview-container .preview-header .nums {
            display: flex;
            justify-content: flex-start;
            align-items: center;
        }

            .image-preview-container .preview-header .nums p {
                font-weight: 300;
                padding: 4px 8px;
                font-size: 16px;
            }

        .image-preview-container .preview-header button {
            background: none;
            border: none;
            outline: none;
            font-size: 18px;
            color: #fff;
            padding: 4px 8px;
            border-radius: 4px;
            -webkit-border-radius: 4px;
            -moz-border-radius: 4px;
            -ms-border-radius: 4px;
            -o-border-radius: 4px;
            position: relative;
        }

        .image-preview-container .preview-header .tool-btn button {
            margin-left: 2vw;
        }

        .image-preview-container .preview-header button:hover::after,
        .image-preview-container .preview-header button:hover::before {
            display: block;
        }

        .image-preview-container .preview-header button::before {
            content: '';
            position: absolute;
            left: 50%;
            top: calc(130% - 5px);
            transform: translateX(-50%);
            border-right: 5px solid transparent;
            border-left: 5px solid transparent;
            border-bottom: 5px solid #000;
            display: none;
        }

        .image-preview-container .preview-header button::after {
            content: attr(data-tooltip);
            font-size: 12px;
            position: absolute;
            left: 50%;
            top: 130%;
            transform: translateX(-50%);
            background: #000;
            padding: 2px 5px;
            white-space: nowrap;
            -webkit-transform: translateX(-50%);
            -moz-transform: translateX(-50%);
            -ms-transform: translateX(-50%);
            -o-transform: translateX(-50%);
            border-radius: 2px;
            -webkit-border-radius: 2px;
            -moz-border-radius: 2px;
            -ms-border-radius: 2px;
            -o-border-radius: 2px;
            display: none;
        }

        .image-preview-container .preview-header button:hover {
            background: rgba(0, 0, 0, 0.2);
            cursor: pointer;
        }

#prev,
#next {
    background: none;
    border: none;
    outline: none;
    position: absolute;
    top: 50%;
    color: #f6f6f6;
    padding: 20px 10px;
    cursor: pointer;
}

    #prev i,
    #next i {
        font-size: 24px;
    }

#prev {
    left: 1%;
}

#next {
    right: 1%;
}

.zoom-in {
    cursor: zoom-in;
}

.moving {
    transition: none !important;
    -webkit-transition: none !important;
    -moz-transition: none !important;
    -ms-transition: none !important;
    -o-transition: none !important;
}

@keyframes show {
    0% {
        background: rgba(0, 0, 0, 0);
    }

    100% {
        background: rgba(0, 0, 0, 0.6);
    }
}

@keyframes opacityAnimation {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@font-face {
    font-family: 'iconfont';
    src: url('//at.alicdn.com/t/font_2387568_7n96d4x0sva.eot?t=1614436212405'); /* IE9 */
    src: url('//at.alicdn.com/t/font_2387568_7n96d4x0sva.eot?t=1614436212405#iefix') format('embedded-opentype'),
    /* IE6-IE8 */
    url('data:application/x-font-woff2;charset=utf-8;base64,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') format('woff2'), url('//at.alicdn.com/t/font_2387568_7n96d4x0sva.woff?t=1614436212405') format('woff'), url('//at.alicdn.com/t/font_2387568_7n96d4x0sva.ttf?t=1614436212405') format('truetype'),
    /* chrome, firefox, opera, Safari, Android, iOS 4.2+ */
    url('//at.alicdn.com/t/font_2387568_7n96d4x0sva.svg?t=1614436212405#iconfont') format('svg'); /* iOS 4.1- */
}

.iconfont {
    font-family: 'iconfont' !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-xiayige:before {
    content: '\e627';
}

.icon-shangyige:before {
    content: '\e622';
}

.icon-account-practice-lesson-close:before {
    content: '\e600';
}

.icon-zhongzhi:before {
    content: '\e602';
}

.icon-xuanzhuan:before {
    content: '\e615';
}

.icon-xuanzhuan1:before {
    content: '\e669';
}

@media screen and (max-width: 768px) {
    .preview-header .nums p,
    .preview-header .iconfont {
        font-size: 12px !important;
    }
}