.tr-panel {
  padding: 0;
  overflow: hidden;
  max-width: 560px;
  margin: 0 auto;
}
.tr-panel #gameCanvas {
  display: block;
  width: 100%;
  height: 82vh;
  min-height: 480px;
  max-height: 860px;
  background: #0a0514;
  cursor: pointer;
  touch-action: none;
}

@media (max-width: 640px) {
  .tr-panel #gameCanvas {
    height: 74vh;
    min-height: 420px;
  }
}