.img-list {
  margin-top: 20px;
  min-height: 500px;
}
.img-list li {
  width: 25%;
  height: 200px;
  float: left;
  margin-bottom: 40px;
  cursor: pointer;
}
.img-list li > img {
  width: 90%;
  height: 100%;
  margin-right: auto;
  margin-left: auto;
  object-fit: cover;
  display: block;
}
.img-list li > div {
  width: 90%;
  margin-right: auto;
  margin-left: auto;
  margin-top: 5px;
text-align: center;
}