div.resim {
  display:block;
}
.gorunecekolan {
  position:absolute;
  display:none;
  left:50%;
  margin-left:-60px;
  width:120px;
  height:30px;
  line-height:30px;
  background:#e2007a;
  top:225px;
  color:#fff;
  font-weight:bold;
  text-align:center;
  cursor: pointer;
}
div.resim:hover .gorunecek {
  display:block;
}