body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
  }
  
  .container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    text-align: center;
  }
  
  textarea {
    width: 100%;
    height: 300px;
    resize: none;
  }