#main__bg {
  background-image: url(../../assets/wave-pattern.png);
  background-size: cover;
  background-position: 50% 100%;
  background-repeat: no-repeat;
}

@media screen and (max-width: 768px) {
  #main__bg {
    background-size: contain;
    background-position: 50% 50%;
  }
}