.nahled_media {
  display:block;
  height:82px;
  width:111px;
  background-position:top left;
  background-repeat:no-repeat;
  float:left;
  border:1px solid #d0d0d0;
}

.nahled_media:hover {
  background-position:-111px 0;
  border:1px solid gray;
}