li {
    list-style: none;
}

img {
    font-size: 0;
}

#swiper {
    position: relative;
}

#swiper .img-box {
    position: absolute;
    top: 0;
    left: 0;
}

#swiper .img-box li {
    display: inline-block;
}

#swiper .img-box li img {
    width: 100%;
    height: 100%;
}

#swiper .dot {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translatex(-50%);
}

#swiper .dot ul {
    background: rgba(255, 0, 0, 0.6);
    border-radius: 10px;
}

#swiper .dot ul li {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    display: inline-block;
    margin: 4px;
}

#swiper .btn {
    position: absolute;
    top: 50%;
    margin-top: -20px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.5);
    font-size: 25px;
    color: #fff;
    font-family: "宋体";
    text-align: center;
    line-height: 40px;
    cursor: pointer;
    display: none;
}


#swiper .prevbtn {
    left: 0;
    border-radius: 0 50px 50px 0;
}

#swiper .nextbtn {
    right: 0;
    border-radius: 50px 0 0 50px;
}

#swiper .dot .active {
    background-color: #f00;
}