body {
  font-family:Microsoft YaHei;
  background-color: #f2f2f2;
}
.content3_pic {
     padding: 60px 80px 10px;
    background-color: #ffffff;
    max-width: 1260px;
    margin: 120px auto;
}

.content3_pic a:hover {
   /* -webkit-transform: scale(1.08);
    transform: scale(1.08);
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);*/
    /*border-radius: 50%*/
  }
.content3_pic a img{
   float:left;
   padding:0px;
}
.content3_pic a .div2{
    position: absolute;
    color: #f2f2f2;
    width: 100%;
    line-height: 30px;
    padding: 25px 0;
    text-align: center;
    font-size: 20px;
    letter-spacing: 1px;
    bottom: 0;
}
.content3_pic a .bg{
     position:absolute;
     width:100%;
     height: 100%;
     background: url("dl_jb.png") 0% 110%  repeat-x;    top: 0;
    left: 0;
}

.content3_pic a:nth-child(3),.content3_pic a:nth-child(6),.content3_pic a:nth-child(9),.content3_pic a:nth-child(12),.content3_pic a:nth-child(15){
  margin: 0px 99px 60px 99px;
}
.content3_pic .title {
  font-size:40px;
  font-weight:700;
  letter-spacing: 2px;
  text-align: center;
  margin-bottom: 100px;
}
.dlkc.clearfix li {
    float: left;
    width: 33.3%;
    list-style: none;    margin-bottom: 50px;
}.dlkc.clearfix li a {
    display: block;
    float: none;
    margin: 0 50px;
    position: relative;
}.dlkc.clearfix li a .news_imgs img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    max-width: 100%;
    transition: all 0.4s ease-in-out;
}.dlkc.clearfix {
    margin: 0 -50px;
}
.dlkc.clearfix li a .news_imgs {
    padding-top: 140%;
    background-color: #efefef;
    position: relative;
    overflow: hidden;
}

@media screen and (max-width: 1430px) {
.content3_pic {
      margin: 30px 10px;
}
}

@media screen and (max-width: 999px) {
.dlkc.clearfix li {
    float: left;
    width: 50%;
    list-style: none;
    margin-bottom: 50px;
}

}


@media screen and (max-width: 767px) {
.content3_pic {
    padding: 20px;
}
.content3_pic .title {
    margin-bottom: 20px;
}
.dlkc.clearfix li a {
    margin: 0 10px;
}
.dlkc.clearfix {
    margin: 0 -10px;
}

}