body {
  font-family: Arial, sans-serif;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 20px;
}

.input-group {
  display: flex;
  align-items: center;
  margin: 10px;
}

.input-group label {
  margin-right: 10px;
}

canvas {
  display: block;
  margin: auto;
  margin-top: 20px;
  border: 1px solid black;
}