aristath/kirki

.customize-control-kirki-radio-image {
  > .image {
    display: flex;
    flex-wrap: wrap;
  }

  label {
    position: relative;
    display: inline-block;
  }

  label .image-label {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.7);
    font-weight: 700;
  }

  label .image-label .inner {
    width: 100%;
    height: 100%;
    text-align: center;
    padding: 0.5em;
    vertical-align: middle;
  }

  label:hover .image-label {
    display: block;
  }

  input {
    display: none;
  }

  input img {
    border: 1px solid transparent;
  }

  input:checked + label img {
    -webkit-box-shadow: 0 0 5px 2px rgba(0, 0, 0, 0.25);
    box-shadow: 0 0 5px 2px rgba(0, 0, 0, 0.25);
    border: 1px solid #3498db;
  }

  input + label .image-clickable {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
  }
}