.book-btn {
  display: inline-block;
  background: #ffd400;
  color: #000;
  padding: 14px 28px;
  border-radius: 30px;
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  position: relative;
  z-index: 10;
}