.page-center-container {
  width: 476px;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

@media only screen and (max-width: 480px)  {
  .page-center-container {
    width: 100%;
    padding: 15px;
  }
}