.model-list-50 {
  padding-top: 50px;
  padding-bottom: 50px;
}
.model-list-50 .itembox {
  position: relative;
  margin-top: 75px;
}
.model-list-50 .itembox .ul-box {
  display: flex;
  justify-content: center;
  align-items: center;
}
.model-list-50 .itembox .ul-box .li {
  display: flex;
  justify-content: center;
  align-items: center;
  float: left;
  box-sizing: border-box;
  position: relative;
  width: 100%;
  height: 100%;
  box-shadow: 0 0 10px 0 rgba(255, 255, 255, 0.1);
  margin: 15px;
  cursor: pointer;
}
.model-list-50 .itembox .ul-box .li:first-child {
  margin-left: 0;
}
.model-list-50 .itembox .ul-box .li:last-child {
  margin-right: 0;
}
.model-list-50 .itembox .ul-box .li:hover:after {
  opacity: 1;
}
.model-list-50 .itembox .ul-box .li img {
  position: relative;
  z-index: 2;
}
.model-list-50 .itembox .ul-box .li:after {
  content: "";
  position: absolute;
  width: 94%;
  height: 94%;
  top: 3%;
  left: 3%;
  box-shadow: 0 0 15px 15px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transition: .5s;
  z-index: 1;
}