QuickReference/themes/anzhiyu/source/css/_extra/reward/about-reward.css

.about-reward {
  position: absolute;
  top: 1rem;
  right: 2rem;
}
@media screen and (max-width: 768px) {
  .reward .about-reward #con {
    width: 170px;
  }
  .reward #tube-con {
    display: none;
  }
}