CODALSD

.bg {
  background-size: cover;
  height: 100%;
  overflow: hidden;
  transition: ease all 0.80s;
}

.bg:hover .show-block {
  margin-bottom: 0;
}
.bg:hover:first-child {
  padding-right:100px;
  margin-right:-85px;
  transition: ease all 0.80s;
  z-index:100;
}
.bg:hover {
  padding:0 100px;
  margin:0 -85px;
  transition: ease all 0.80s;
  z-index:100;
}
.bg:hover:last-child {
  padding-left:100px;
  margin-left:-85px;
  transition: ease all 0.80s;
  z-index:100;
}