.control-box_c_s {
    width: 1270px;
    height: 284px;
    margin-left: auto;
    margin-right: auto;
}
.control-box_c_s ul {
  list-style: none;
  position: relative;
}
.control-box_c_s ul li {
  position: absolute;
  top: 100px;
  cursor: pointer;
}
.prev {
  left: 0; }
.next {
  right: 0;}
.prev img{
  width:30px; }
.next img{
  width:30px;} 
.bigbox_c_s {
  overflow: hidden;
  width: 1200px;
  height: 282px;
  margin: auto 35px auto;
}
#switcher_c {
  height: 280px;
  left: 0px;
}
.content_1.content_2 {
  width: 100%;
  float: left;
}
.box_c_s {
  transition:all .7s ease 0s;
  height: 280px;
  float: left;
  margin:0 3px;
  border:1px #cccccc solid;
}
.box_c_s img{ width:98%; padding:1%}
.shadow {
  width: 255px;
  height: 60px;
  color:#1d9b93;
  font-size: 14px;
}
.shadow a {
  display: inline-block;
  text-align:center;
  width: 225px;
  height: 60px;
  color:#1d9b93;
  text-decoration: none;
  margin-left: 18px;
  margin-top: 10px;
}

@media only screen and (max-width:860px){
.control-box_c_s {
    width: 100%;
    height: 284px;
    margin-left: auto;
    margin-right: auto;
}

.bigbox_c_s {
  overflow: hidden;
  width: 84%;
  height: 282px;
  margin: auto 8% auto;
}
.prev img{
  width:25px; }
.next img{
  width:25px;} 
}