.bannerBox .banner {
    width: 100%;
    height: 254px;
    max-width: 100%;
    margin: 38px auto 0;
    overflow: hidden;
    position: relative;
}

.bannerBox .banner ul {
    position: absolute;
    width: 452px;
    height: 254px;
    left: 50%;
    margin-left: -226px;
}

.bannerBox .banner li {
    width: 100%;
    height: 100%;
    background: #fff;
    position: absolute;
    left: 0px;
    top: 0px;
    z-index: 1;
    transform: scale(0.85);
    transition: transform 0.4s;
    box-sizing: border-box;
    padding-top: 5px;
}

.bannerBox .banner li a {
    display: block;
    width: 442px;
    height: 244px;
    margin: 0 auto;
}

.bannerBox .banner li.on {
    transform: scale(1);
}

.banner-btn-prev,
.banner-btn-next {
    display: block;
    width: 21px;
    height: 34px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    cursor: pointer;
}

.banner-btn-prev {
    left: 0;
    background: url(../images/lb_left.png) no-repeat center;
}

.banner-btn-next {
    right: 0;
    background: url(../images/lb_right.png) no-repeat center;
}