button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 15px 30px;
    font-size: 18px;
    color: #fff;
    background-color: #007BFF;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
  }
  
  button:hover {
    background-color: #0056b3;
  }