.swiper-container {
    width: 520px;
    height: 280px;
    overflow: hidden;
    margin: 100px auto;
    position: relative;
}
.swiper-pagination {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 20px;
    display: flex;
    justify-content: center;
}
.swiper-pagination-item {
    width: 15px;
    height: 15px;
    border-radius: 100%;
    background: #fff;
    margin-right: 10px;
    cursor: pointer;
}
.swiper-wrapper {
    display: flex;
}
.swiper-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 25px;
    cursor: pointer;
}
.swiper-button-prev {
    left: 10px;
}
.swiper-button-next {
    right: 10px;
}
.active {
    background: red;
}
.dh {
    transition-duration: 300ms;
}