.btn {
      padding: 8px 12px;
      border: 1px solid #aaa;
      background: #fff;
       color: red;   
           font-weight: bold;
      cursor: pointer;
    }
       .btn:hover {
      background-color: #c22e2e;
      color: white;
    }
       h2 {
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 20px;
    }