body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
}

header, footer {
    background-color: #343a40;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

nav {
    background-color: #007BFF;
    color: white;
    text-align: center;
    padding: 0.5rem;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 2rem;
}

ul {
    list-style-type: disc;
    margin-left: 2rem;
}

a {
    color: #007BFF;
}