.sms-frame{
  max-width: 1080px;
  width: 100%; 
  height: 1920px; 
  margin: auto;
  display: block; 
  overflow: hidden; 
  border: 0; 
  padding: 0;
}

@media (max-width: 480px) {
  .sms-frame{
    height: 100vh; 
  }
}