@media only screen and (max-width: 375px) {
  html {
    font-size: 30% !important;
  }
}

@media only screen and (max-width: 393px) {
  html {
    font-size: 30% !important;
  }
}

@media only screen and (max-width: 930px) {
  canvas,
  #main,
  #main-container,
  #controllers,
  #end-container,
  #end-container-img,
  #end-container-img img {
    width: 100%;
    height: 100%; /* 100% der Bildschirmhöhe */
  }
}