* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#controls {
  position: absolute;
  display: flex;
  gap: 0.8em;
  padding: 0.4em;
  margin: 1em;
  color: white;
  background-color: hsl(0 50 0 / 60%);
  border: 3px solid black;
}

@media (max-width: 800px) {
  #controls {
    flex-direction: column;
    gap: 0.4em;
  }

  #controls > * {
    justify-content: center;
  }
}

button[type="button"] {
  padding-inline: 0.4em;
}