body {
  background: #222;
  color: #fff;
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px;
}
canvas {
  image-rendering: pixelated;
  border: 1px solid #555;
  margin-bottom: 10px;
}
#controls, #textPanel {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 5px;
}
#textPanel {
  flex-direction: column;
  background: #333;
  padding: 10px;
  border: 1px solid #555;
  display: none;
}