body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
    }
    .navbar {
        background-color: #333;
        overflow: hidden;
    }
    .navbar a {
        float: left;
        display: block;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
    }
    .navbar a:hover {
        background-color: #ddd;
        color: black;
    }
    .container {
        text-align: center;
        background: white;
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    }