.btn-yellow {
  color: #fff; text-shadow: 0 1px 1px rgba(0,0,0,0.4);
  background-color: #fba720;
  border-color: #fb9f0d;
}

.btn-yellow:hover {
  color: #fff;
  background-color: #fb9f0d;
  border-color: #dd8904;
}