#cf {
  position:relative;
  height:350px;
  width:350px;
  margin:0 auto;
}
#cf img {
  position:absolute;
  left:0;
  -webkit-transition: opacity 1s ease-in-out;
  -moz-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
}
#cf img.top:hover {
 opacity:0;
}

img:hover {
 transform: scale (1.1);
}

.link span {
  text-align: center;
  display:block;
}

.link {
  display: inline-block;
}