.rec-crop {
  width: 500px;
  height: 300px;
  position: relative;
  text-align: center;
  color: white;
}

.square-crop {
  width: 250px;
  height: 250px;
  position: relative;
  text-align: center;
  color: white;
}
.square-crop a {
  display: block;
  width: 250px;
  height: 250px;
  z-index: 99;
}

.square-crop:hover { 
  opacity: 0.5;
}

.image-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}