.button-block .btn.btn-social {
  width: 40px;
  height: 40px;
  border-radius: 20px;
  text-align: center;
  padding: 0;
  margin: 0;
  color: white;
}
.button-block .btn.btn-social > .fa {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 100%;
  height: 100%;
  font-size: 20px;
}
.button-block .btn.btn-social.btn-facebook {
  background-color: #1778f2;
}
.button-block .btn.btn-social.btn-pinterest {
  background-color: #9c0343;
}
.button-block .btn.btn-social.btn-whatsapp {
  background-color: #25d366;
}
.button-block .btn.btn-social.btn-mail {
  background-color: #666;
}