body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 2em;
    padding: 2em;
    color: #333;
}
h1 {
    color: #2E8B57;
}

nav ul {
    list-style-type: none;
    padding: 0;
    background-color: #333;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav ul li a:hover {
    text-decoration: underline;
}

section {
    padding: 1em;
    background-color: #fff;
    margin-bottom: 1em;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

section h2 {
    color: #2E8B57;
    margin-top: 0;
}

section ul {
    list-style-type: disc;
    margin-left: 1em;
}