* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
  }
  
  .container {
    width: 90%;
    max-width: 600px;
    margin: 100px auto;
    padding: 40px;
    text-align: center;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    color: #333;
  }
  
  p {
    margin: 30px 0;
    font-size: 18px;
  }
  
  button {
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    background: #007bff;
    color: white;
    font-size: 16px;
    cursor: pointer;
  }
  
  button:hover {
    background: #0056b3;
  }