.imageview-demo ul {
  margin-bottom: 20px;
  overflow: hidden;
}
.imageview-demo ul li {
  width: 100px;
  height: 100px;
  float: left;
  margin-right: 5px;
}
.imageview-demo ul li .pic {
  width: 100px;
  height: 100px;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  background-size: cover;
}