body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #f0f0f0;
  }
  
  button {
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
  }
  
  h1 {
    margin-bottom: 20px;
  }