body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
  }
  
  .container {
    text-align: center;
    background-color: white;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }
  
  button {
    padding: 15px 30px;
    margin: 15px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  #alertBtn {
    background-color: #e74c3c;
    color: white;
  }
  
  #silentAlertBtn {
    background-color: #3498db;
    color: white;
  }