.btn-facebook {
  border-radius: 0;
  background-color: #3b5999;
  color: white;
}
.btn-facebook:hover {
  background-color: #29427e;
  border: solid 1px #29427e;
  color: white;
}
.btn-twitter {
  border-radius: 0;
  background-color: #55acee;
  color: white;
}
.btn-twitter:hover {
  background-color: #0095e5;
  border: solid 1px #0095e5;
  color: white;
}

.btn-google-plus {
  border-radius: 0;
  background-color: #dd4b39;
  color: white;
}
.btn-google-plus:hover {
  background-color: #bc2323;
  border: solid 1px #bc2323;
  color: white;
}

.btn-email {
  border-radius: 0;
  background-color: #1f6db8;
  color: white;
}

.btn-email:hover {
  background-color: #0d477e;
  border: solid 1px #0d477e;
  color: white;
} 


@media only screen and (max-width:992px){
  .btn-email, .btn-facebook, .btn-google-plus, .btn-twitter {
      width: 100%;
  }
}