ul.acf-image-select-list li {
  display: inline-block;
  margin: 5px;
  text-align: center;
}
ul.acf-image-select-list li .item-title,
ul.acf-image-select-list li input {
  display: none;
}
.acf-image-select-list .acf-image-select img {
  border: solid 4px #d9d9d9;
}
.acf-image-select-list .acf-image-select .acf-image-select-selected img {
  border: solid 4px #7a7a7a;
}