body {
    margin: 0;
    font-family: Arial, sans-serif;
}

.navbar {
    background: #111;
    padding: 15px;
}

.navbar button {
    background: none;
    border: none;
    color: white;
    margin-right: 20px;
    cursor: pointer;
    font-size: 16px;
}

.container {
    padding: 40px;
}

.footer {
    background: #111;
    color: white;
    padding: 20px;
    margin-top: 40px;
}