.btn-google {
  background-color: #db4c3e;
  color: #fff;
  border: 1px solid #db4c3e;
}
.btn-facebook {
  background-color: #1877F2;
  color: #fff;
  border: none;
}
.btn-microsoft {
  background-color: #f3f3f3;
  color: #000;
  border: 1px solid #ccc;
}