.app_flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-top: 20px;
}
.app_flex a:hover {
  opacity: 0.75;
}
.app_flex .qr_code {
  width: 216px;
}
.app_flex .qr_code img {
  width: 100%;
  height: auto;
}
.app_flex .app_link {
  width: 187px;
}
.app_flex .app_link img {
  width: 100%;
  height: auto;
}
@media (max-width: 640px) {
  .app_flex {
    flex-direction: column;
  }
}