body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 0;
}
header {
    background-color: #222;
    color: white;
    text-align: center;
    padding: 20px;
}
header a {
    color: #E67E22;
    text-decoration: none;
    font-weight: bold;
}
header a:hover {
    text-decoration: underline;
}
section {
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
ul {
    list-style-type: square;
    padding-left: 20px;
}
li {
    margin: 10px 0;
}