body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f2f2f2;
    margin: 0;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
}

h1 {
    font-size: 24px;
}

#quiz {
    margin: 20px 0;
}

.choice {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    background-color: #3498db;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.choice:hover {
    background-color: #2980b9;
}

#result {
    font-weight: bold;
    margin-top: 10px;
}

#nextButton {
    display: none;
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

#nextButton:hover {
    background-color: #45a049;
}