.guest_register_btn {
  display: block;
  margin: 5% auto 0;
}

.guest_register_btn img {
  display: block;
  width: 70%;
  margin: 1rem auto 0;
}

.guest_pre_back_btn {
  font-size: 180%;
  text-align: center;
  margin: 0 auto;
  width: 40%;
  display: block;
}

.guest_pre_back_btn a {
  color: white;
  display: inline-block;
  text-decoration: none;
  margin-top: 1rem;
  padding: 0.3rem 0.5rem;
  border-radius: 0.5rem;
  background-color: #1d2946;
  width: 100%;
  margin: 1rem 0 2rem;
}