body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

.quiz-container {
    width: 300px;
    margin: 0 auto;
    text-align: center;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

.btn {
    display: inline-block;
    background-color: #2f83aa;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    cursor: pointer;
}

.btn:hover {
    background-color: #304fa3;
}

.btn-container {
    margin-top: 20px;
}

.wrong {
    background-color: #dc3545;
}

.correct {
    background-color: #28a745;
}

.feedback {
    margin-top: 10px;
    font-weight: bold;
}

.correct-message {
    color: green;
}

.wrong-message {
    color: red;
}