body {
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  font-family: Arial, sans-serif;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

label {
  font-weight: bold;
}

input {
  width: 80px;
  padding: 5px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

canvas {
  display: block;
  border: 1px solid #ccc;
  border-radius: 4px;
}