body {
    background-color: #eaefff;
    font-family: 'Comic Sans MS', cursive, sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #8efbad;
    text-align: center;
    padding: 10px;
    font-size: 1.5em;
}

nav {
    margin: 15px;
    text-align: center;
}

nav a {
    margin: 0 15px;
    color: #333;
    text-decoration: none;
    font-weight: bold;
}

main {
    padding: 20px;
}

h1, h2 {
    color: #006400;
}

.quiz-section {
    background-color: #f4fff8;
    padding: 20px;
    border: 2px solid #00cc00;
    border-radius: 10px;
    margin-bottom: 20px;
}

.btn {
    background-color: #00cc00;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
}

.btn:hover {
    background-color: #009900;
}