body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
            color: #333;
        }
        .container {
            width: 80%;
            margin: auto;
            overflow: hidden;
        }
        header {
            background: #333;
            color: #fff;
            padding-top: 10px;
            min-height: 70px;
            border-bottom: #fff 3px solid;
            text-align: center;
        }
        header h1 {
            margin: 0;
            padding: 0;
        }
        h2 {
            color: #333;
        }
        h3 {
            color: #555;
        }
        p {
            margin: 15px 0;
        }
        ul {
            list-style: none;
            padding: 0;
        }
        li {
            background: #fff;
            margin: 10px 0;
            padding: 10px;
            border-radius: 5px;
            box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
        }
        a {
            color: #0066cc;
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }