body {
    font-family: Arial, sans-serif;
    background-color: #f3f3f3;
    margin: 0;
    padding: 0;
}

.quiz-container {
    background-color: #fff;
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.high-score-container {
    background-color: #fff;
    max-width: 300px;
    margin: 20px auto;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

button {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 10px 0;
}