.fa {
  padding: 15px;
  font-size: 15px;
  width: 40px;
  text-align: center;
  text-decoration: none;
  margin: 5px 2px;
}
/*
.fa:hover {
    opacity: 0.7;
    color: white;
    text-decoration: none;
}
*/
.fa:visited {
    color: white;
    text-decoration: none;
}

.fa-facebook {
  background: #dae1f1;
  color: white;
}

.fa-facebook:hover {
  background: #3B5998;
  color: white;
  text-decoration: none;
}

.fa-linkedin {
  background: #ccefff;
  color: white;
}

.fa-linkedin:hover {
  background: #007bb5;
  color: white;
  text-decoration: none;
}

.fa-envelope {
  background: #ffe8cc;
  color: white;
}

.fa-envelope:hover {
  background: #ffa438;
  color: white;
  text-decoration: none;
}