.imgTag {
  position: relative;
  height: 55px;
  width: 110px;
}

.imgDescription {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(181, 20, 204, 0.72);
  color: #fff;


  visibility: hidden;
  opacity: 0;

  /*remove comment if you want a gradual transition between states
  -webkit-transition: visibility opacity 0.2s;
  */
}


.imgTag:hover .imgDescription {
  visibility: visible;
  opacity: 1;
}