body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f8f8f8;
    padding: 20px;
}
.quiz-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    display: inline-block;
}
button {
    margin-top: 10px;
    padding: 10px 20px;
}