.card {
  position: relative;
  border: none;
  padding-left: 0px;
  padding-right: 0px;
}
.card img:hover{
  opacity: .8;
  transition: .5s;
}
.card-body{
  margin: 0;
  padding: 0;
  text-align: center;
}
.card:after{
  /*-- content: "\f07a"; --*/
  position: absolute;
  left: 5px;
  top: 5px;
  font-family: 'fontAwesome';
  font-size: 25px;
  color: red;
  transition: .5s;
  opacity: .5;
}
.card:hover:after{
  opacity: .9;
}