.control-box {
    width: 1170px;
    height: 120px;

    margin-left: auto;
    margin-right: auto;
}
.control-box ul {
    list-style: none;
    position: relative;
}
.control-box ul li {
    position: absolute;
    cursor: pointer;
}
.prev {
    left: 0;
}
.next {
    right: 0;
}
.bigbox {
    overflow: hidden;
    width: 1170px;
    height: 120px;
    margin: auto 2px auto;
}
#switcher {
    height: 90px;
    left: 0px;
}
.content_1.content_2 {
    width: 100%;
    float: left;
}
.box {
    transition:all .7s ease 0s;
    width: 225px;
    height: 90px;
    float: left;
    border: 1px #ccc solid;
}
.box:hover {
    opacity:0.5;
}
.shadow {
    width: 225px;
    height: 60px;
    /* opacity: 1; */
    background-color: rgba(0, 0, 0, 0.45);
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#66000000,endColorstr=#66000000);
    margin-top: 130px;
    color: white;
    font-size: 14px;
}
.shadow a {
    display: inline-block;
    width: 225px;
    height: 60px;
    color: white;
    text-decoration: none;
    margin-left: 18px;
    margin-top: 10px;
}