.gf-gallery .zoom-image {
  -webkit-transition: color 0.5s, opacity 1s, transform 0.5s;
  -moz-transition: color 0.5s, opacity 1s, transform 0.5s;
  -ms-transition: color 0.5s, opacity 1s, transform 0.5s;
  -o-transition: color 0.5s, opacity 1s, transform 0.5s;
  transition: color 0.5s, opacity 1s, transform 0.5s;
  right: 50%;
  bottom: 50%;
  margin-right: -17.5px;
  margin-bottom: -17.5px;
}