.fb.btn {
  width: 28%;
  padding: 12px;
  border: none;
  border-radius: 4px;
  margin: 5px 0;
  opacity: 0.85;
  display: inline-block;
  font-size: 17px;
  line-height: 20px;
  text-decoration: none; /* remove underline from anchors */
  text-align: center;
  color: #fff!important;
  margin: 0 auto;
  text-align: center;
  display: block;
}

.fb.btn:hover {
  opacity: 1;
}

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