body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
        }
        header {
            background: #333;
            color: white;
            padding: 15px 20px;
            text-align: center;
        }
        nav ul {
            list-style: none;
            padding: 0;
        }
        nav ul li {
            display: inline;
            margin: 0 15px;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
        }
        section {
            padding: 20px;
            text-align: center;
        }
        .project {
            background: white;
            padding: 15px;
            margin: 10px auto;
            width: 80%;
            border-radius: 5px;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
        }