body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f0f0f0;
    color: #333;
}
header {
    text-align: center;
    padding: 20px;
    background-color: #007bff;
    color: white;
}
h1 {
    margin: 0;
    font-size: 2em;
}
h2 {
    color: #007bff;
}
section {
    margin: 20px 0;
    padding: 15px;
    background-color: white;
    border-radius: 5px;
}
ul {
    list-style-type: none;
    padding: 0;
}
li {
    margin: 10px 0;
}
a {
    color: #007bff;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}