h1, h2, h3 {
            color: #333;
        }
        h1 {
            font-size: 2em;
            margin-top: 20px;
        }
        h2 {
            font-size: 1.5em;
            margin-top: 20px;
        }
        h3 {
            font-size: 1.2em;
            margin-top: 20px;
        }
        p, ul, ol {
            margin: 15px 0;
        }
        ul, ol {
            padding-left: 20px;
        }
        a {
            color: #007bff;
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }