body {

    margin: 0;

    padding: 0;

    font-family: Arial, sans-serif;

    display: flex;

    justify-content: center;

    align-items: center;

    height: 100vh;

    background: #f5f5f5;

}

.container {

    text-align: center;

}

button {

    margin-top: 20px;

    padding: 12px 24px;

    font-size: 16px;

    border: none;

    background: #4CAF50;

    color: white;

    border-radius: 6px;

    cursor: pointer;

}