.control-box {
    width: 1170px;
    height: 230px;
    background-image: url(../images/hots_bg.png);
    background-size: 1055px;
    background-repeat: no-repeat;
    background-position: 60px 165px;
    margin-left: auto;
    margin-right: auto;
}
.control-box ul {
  list-style: none;
  position: relative;
}
.control-box ul li {
  position: absolute;
  top: 50px;
  cursor: pointer;
}

.bigbox {
  height:270px;
  overflow: hidden;
  margin: auto 70px auto;
}
#switcher {
  height:270px;
  left: 0px;
}
.content_1.content_2 {
  width: 100%;
  float: left;
}
.box {
  transition:all .7s ease 0s;
  width:345px;
  height:270px;
  float: left;
  margin-right:10px;
}

.shadow {
  width: 345px;
  height: 60px;
  /* opacity: 1; */
  background-color: rgba(0, 0, 0, 0.45);
  filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#66000000,endColorstr=#66000000);
  margin-top: 210px;
  color: white;
  font-size: 14px;
}
.shadow a {
  display: inline-block;
  width:345px;
  height: 60px;
  color: white;
  text-decoration: none;
  margin-left: 18px;
  margin-top: 10px;
}