body {
  font-family: sans-serif;
  text-align: center;
  margin: 20px;
}
canvas {
  border: 1px solid #ccc;
  cursor: crosshair;
  max-width: 100%;
  height: auto;
}
#colorName {
  margin-top: 10px;
  font-size: 1.5em;
  font-weight: bold;
}