.content3 .showroom, .content3 .showroom ul{
    padding: 0;
    margin: 0
  }
  .content3 {
  overflow: hidden;
  clear: both;
  padding-top: 60px;
  padding-bottom: 60px;
}
  .content3 .showroom {
    width: 1420px;
    margin: 0 auto;
}
.showroom_title {
    margin-bottom: 28px;
}
  .content3 li {
    /*width: 180px;
    height: 180px;*/
    float: left;
    list-style: none
  }

  .content3 .showroom .mll {
    width: 26.5%;
    padding-right: 1.5%;float: left;
}.content3 .showroom .mll li {
    width: 100%;
}
.content3 .showroom .mlr {
    float: right;
    width: 72%;
}

  .content3 li:nth-child(1) {
    
}.content3 .showroom li:nth-child(1) .news_imgs {
    padding-top: 152%;
}
.content3 .showroom .mlr li:nth-child(1) {
    width: 37.5%;
    height: auto;
    padding-right: 1.5%;
    padding-bottom: 1.5%;
}.content3 .showroom .mlr li:nth-child(1) .news_imgs {
    padding-top: 72%;
}
.content3 .showroom .mlr li .bg_show {
    top: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    background: url(showroom_res/short_show_jb.png) repeat-y;    background-size: 100%;
}.content3 .showroom .mlr li:hover .bg_show {
    opacity: 0;
}.content3 .showroom .mlr li .tmpic {
    top: auto;
    bottom: 20px;
}.content3 .showroom .mlr li:nth-child(1) .tmpic {
  
    background: url(showroom_res/kc_show.png) 100% 100% no-repeat;
    
    position: absolute;
}
.content3 .showroom .mlr li:nth-child(2) .tmpic {
  
    background: url(showroom_res/bs_show.png) 100% 100% no-repeat;
    
    position: absolute;
}
.content3 .showroom .mlr li:nth-child(3) .tmpic {
  
    background: url(showroom_res/zt_show.png) 100% 100% no-repeat;
    
    position: absolute;
}
.content3 .showroom .mlr li:nth-child(4) .tmpic {
  
    background: url(showroom_res/syyx_show.png) 100% 100% no-repeat;
    
    position: absolute;
}
.content3 .showroom li:hover .news_imgs img {
    transform: scale(1.1) !important;
}
.content3 .showroom .mlr li:nth-child(3) {
    width: 60.6%;
    padding: 0;    padding-right: 1.5%;
}.content3 .showroom .mlr li:nth-child(3) .news_imgs {
    padding-top: 44.5%;
}.content3 .showroom .mlr li:nth-child(4) {
    width: 37.8%;
    padding: 0;
}.content3 .showroom .mlr li:nth-child(4) .news_imgs {
    padding-top: 72%;
}
.content3 .showroom .mlr li:nth-child(2) {
    width: 61%;
    padding: 0;
}.content3 .showroom .mlr li:nth-child(2) .news_imgs {
    padding-top: 44.3%;
}.content3 .showroom .mlr li:nth-child(2) .tmpic {
       position: absolute;
}
  .content3 li:nth-child(2) {
      width: 27%;
    height: auto;
    padding-right: 1.5%;
    padding-bottom: 1.5%;
}.content3 li:nth-child(3) {
    width: 43.7%;
    height: auto;
}.content3 .showroom li:nth-child(2) .news_imgs {
    padding-top: 74%;
}
 
  .content3 li:nth-child(4) {
       width: 42.3%;
    height: auto;
    padding-right: 1.5%;
}
 .content3 li:nth-child(5) {
      width: 27%;
    height: auto;

}.content3 .showroom li .news_imgs img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    max-width: 100%;    transform: none !important;
    transition: all 0.4s ease-in-out;
}.content3 .showroom li .news_imgs {
    padding-top: 75%;
    background-color: #efefef;
    position: relative;
}.content3 .showroom li a {
    display: block;
    width: 100%;    position: relative;
}
  .content3 li img {
    width: 100%;
    height: 100%;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    -webkit-transition: all ease .3s;
    transition: all ease .5s;
  }
  .content3 li img.object:hover {
    -webkit-transform: scale(1.05);
    transform: scale(1.10);
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    /*border-radius: 50%*/
  }
  .content3 ul li div.tmpic_one {
    top: -510px;
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    background-image: url(http://yssj.wsyu.edu.cn/styles/202104/img/a4.png);
  }
.content3 ul li div.tmpic_one {
      top: 0;
    background: url(showroom_res/short_show_jb.png) repeat-y;
    background-position-x: 10px;
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
}
  .content3 ul li div.tmpic {
    top: -88px;
    right: 18px;
    float: right;
    position: relative;
    width: 113px;
    height: 69px;
    display: flex;
    align-items: flex-end;
  }
  .content3 ul li:nth-child(1) div.tmpic {
     top: auto;
    background: url(showroom_res/hj_show.png) 100% 100% no-repeat;
      bottom: 20px;
    position: absolute;
  }
  .content3 ul li:nth-child(2) div.tmpic {
    top: -365px;
    background: url(showroom_res/kc_show.png)  100%  100%  no-repeat;
  }
  .content3 ul li:nth-child(2) div.bg_show {
    top: -280px;
    width:384px;
    height:275px;
    position: relative;
    background: url("showroom_res/short_show_jb.png")  repeat-y;
  }

  .content3 ul li:nth-child(3) div.tmpic {
    background: url("showroom_res/bs_show.png")  100%  100%  no-repeat;
    top: -365px;
  }
  .content3 ul li:nth-child(3) div.bg_show {
    top: -280px;
    width: 620px;
    height: 275px;
    position: relative;
    background: url(showroom_res/long_show_jb.png) repeat-y;
}
  .content3 ul li:nth-child(4) div.tmpic {
    background: url("showroom_res/zt_show.png")   100%  100%  no-repeat;
    top: -365px;
  }
  .content3 ul li:nth-child(4) div.bg_show {
    top: -280px;
    width: 620px;
    height: 275px;
    position: relative;
    background: url(showroom_res/long_show_jb.png) repeat-y;
}
  .content3 ul li:nth-child(5) div.tmpic {
    width: 122px;
    top: -365px;
    background: url("showroom_res/syyx_show.png")  100%  100%  no-repeat;
  }
  .content3 ul li:nth-child(5) div.bg_show {
    top: -280px;
    width: 384px;
    height: 275px;
    position: relative;
    background: url(showroom_res/short_show_jb.png) repeat-y;
}