html, body {
  margin: 0;
  padding: 0;
}
canvas {
  display: block;
}

#ui {
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: flex;
  gap: 10px;
  align-items: center;
}

#colorBox {
  position: relative;
  bottom: -20px;
  left: 12px;
  width: 40px;
  height: 40px;
  border: 2px solid #00000055;
}

#infoText {
  color: #000;
  font-size: 14px;
  line-height: 1.2;
  white-space: pre-line;
}