body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
  }
  
  .container {
    max-width: 600px;
    margin: 20px auto;
    padding: 50px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    text-align: center;
  }
  
  input[type="text"] {
    width: 70%;
    padding: 10px;
    margin-bottom: 10px;
  }
  
  button {
    padding: 10px 20px;
    background-color: #4caf50;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #45a049;
  }
  
  ul {
    list-style-type: none;
    padding: 0;
  }
  
  li {
    padding: 10px;
    border-bottom: 1px solid #ddd;
  }
  
  li:last-child {
    border-bottom: none;
  }