.fa {
  border-radius: 50%;
  padding: 5px;
  font-size: 15px;
  width: 20px;
  text-align: center;
  text-decoration: none;
  margin: 3px 1px;
}

/*
background: #008a7c;
  border-radius: 50%;
  color: #fff;
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
*/

.fa:hover {
    opacity: 0.5;
}

.fa-facebook {
  background: #3B5998;
  color: white;
}

.fa-twitter {
  background: #55ACEE;
  color: white;
}

.fa-linkedin {
  background: #007bb5;
  color: white;
}

.fa-youtube {
  background: #bb0000;
  color: white;
}

.fa-instagram {
  background: #d32d79;
  color: white;
}