body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Make sure the content stretches to at least the height of the viewport */
}

header {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}

nav {
    background-color: #333;
    color: white;
    padding: 10px;
    display: flex;
    justify-content: flex-end;
}

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

li {
    display: inline;
    margin-right: 20px;
}

a {
    text-decoration: none;
    color: white;
}

section {
    margin: 20px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    margin-top: auto; /* Push the footer to the bottom */
}