a.amz-button {
  background: #ffd900 !important;
  color: #000 !important;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  padding: 5px 10px;
}

a.amz-button:hover {
  text-decoration: none;
  color: #000 !important;
  background: #ffcc2f  !important;
}