.carousel-content {
    position: relative;
    display: inline-block;
    width: 1900px;
    height: 500px;
    margin: 0 auto 0 -950px;
    left: 50%;
}

.carousel {
    width: 1900px;
    height: 500px;
    position: relative;
    overflow: hidden;
}

.carousel li {
    float: left;
    position: absolute;
    display: none;
}

.carousel li, .carousel li img {
    width: 100%;
    height: 100%;
}

.img-index {
    position: absolute;
    bottom: 8px;
    width: 100%;
    display: flex;
    justify-content: center;
}

.img-index li {
    float: left;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.2);
    font-size: 12px;
    cursor: pointer;
    margin: 0 3px;
    color: #fff;
}

.img-index li.index {
    background-color: rgba(0, 0, 0, 0.6);
}

.img-index li:hover {
    background-color: rgba(0, 0, 0, 0.6);
}