.preview {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.preview_task {
    width: 100%;
    height: 100%;
    background: #0000008a;
    position: absolute;
    z-index: -1;
}
.preview_wrap {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.preview_img {
    height: 100%;
    position: relative;
    z-index: 10;
}

.preview_close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: #fff;
    z-index: 9;
    font-size: 28px;
}


.navigation {
    position: absolute;
    z-index: 9;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 27px;
    background: #939090;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 100%;
}
.navigation_left {
    left: 10px;
}
.navigation_right {
    right: 10px;
}

.preview_list {
    width: 282px;
    height: 44px;
    position: absolute;
    z-index: 11;
    left: 50%;
    bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateX(-50%);
    padding: 0 23px;
    background-color: #606266;
    box-sizing: border-box;
    border-radius: 22px;
    color: #fff
}
.preview_list .preview_list_item {
    cursor: pointer;
}
.preview_list .right {
    transform: rotateY(180deg);
}