body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    color: #333;
}

header {
    background-color: #0066cc;
    color: white;
    padding: 20px;
    text-align: center;
}

section {
    padding: 20px;
    margin: 10px;
    background: white;
    border-radius: 8px;
}

h2 {
    color: #0066cc;
}

ul {
    list-style-type: square;
    padding-left: 20px;
}

button {
    margin: 20px;
    padding: 10px 20px;
    background-color: #0066cc;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0055aa;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px;
}