.gallery-thumbnail {
  position: relative;
  width: 190px;
  height: 125px;
  margin: 2px;
  /*overflow: hidden;*/
}
.gallery-thumbnail img {
  position: absolute;
  width: 190px;
  height: 125px;
/*  left: 50%;
  top: 50%;
  height: 100%;
  width: auto;
  -webkit-transform: translate(-50%,-50%);
      -ms-transform: translate(-50%,-50%);
          transform: translate(-50%,-50%);*/
}
.gallery-thumbnail img:hover {
    opacity: 0.7;
    cursor:zoom-in;
}
.gallery-thumbnail img.portrait {
  width: 100%;
  height: auto;
}