#psp-emulator-wrapper {
  position: relative;
  max-width: 480px;
  margin: auto;
}
#psp-canvas {
  width: 100%;
  background: #000;
}
#touch-controls {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
#touch-controls button {
  pointer-events: auto;
  opacity: 0.6;
  font-size: 18px;
  padding: 10px;
}
.dpad, .actions {
  position: absolute;
  bottom: 10px;
}
.dpad { left: 10px; }
.actions { right: 10px; }