body {
    font-family: Arial, sans-serif;
    background-color: ⁠f0f0f0;
    margin: 0;
    padding: 0;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 20px;
    text-align: center;
}

h1, h2 {
    margin: 0 0 10px 0;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    background-color: white;
    margin: 10px auto;
    padding: 10px;
    width: 80%;
    border-radius: 5px;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #ddd;
    margin-top: 20px;
}