.icon{
  width: 50px;
  text-align: center;
}


.change img:nth-child(2){display:none;}
.change:hover img:first-child{display:none;}
.change:hover img:nth-child(2){display:inline-block;}

.change:hover{
  cursor: pointer;
  color:whitesmoke;
  text-decoration: underline;
}

.item{
  display: inline-block;
  text-align: center;
  margin: 15px;
}