img {
    max-width: 100%;
}

.lbtx_banner {
    position: relative;
    z-index: 1;
    width: 1920px;
    height: 100%;
    margin-left: -360px;
}

    .lbtx_banner .mli {
        position: absolute;
        z-index: 1;
        width: 100%;
        height: 100%;
        opacity: 0;
        transition: 1s;
    }

        .lbtx_banner .mli.on {
            z-index: 2;
            opacity: 1;
        }

    .lbtx_banner .dianbox {
        position: absolute;
        z-index: 10;
        bottom: 20px;
        width: 100%;
        height: auto;
        text-align: center;
    }

        .lbtx_banner .dianbox .oli {
            width: 18px;
            height: 18px;
            margin: 0 8px;
            background: rgba(255, 255, 255, 1);
            display: inline-block;
            border: 1px solid #fff;
        }

            .lbtx_banner .dianbox .oli.on {
                background: rgba(255, 255, 255, 0.50);
            }

    .lbtx_banner .arrbox_l, .arrbox_r {
        position: absolute;
        z-index: 10;
        width: 60px;
        height: 120px;
        background: #808080;
        top: 50%;
        margin-top: -60px;
        left: 30px;
    }

    .lbtx_banner .arrbox_r {
        left: initial;
        right: 30px;
    }