body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  text-align: center;
  padding: 20px;
}

.toolbar {
  margin-bottom: 10px;
}

button {
  margin: 5px;
  padding: 10px 15px;
  background: #0078d4;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

canvas {
  border: 2px solid #ccc;
  background: white;
}

input[type="color"] {
  margin-left: 10px;
  height: 40px;
  width: 40px;
  border: none;
}