使用 HTML 和 CSS 构建您的第一个响应式网站

    <meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>responsive website</title><link rel="stylesheet" href="styles.css"><header><h1>my responsive website</h1>        <nav><ul><li><a href="#home">home</a></li>                <li><a href="#about">about</a></li>                <li><a href="#services">services</a></li>                <li><a href="#contact">contact</a></li>            </ul></nav></header><main><section id="home"><h2>welcome to my website</h2>            <p>this is a simple responsive website built with html and css.</p><p><span>立即学习</span>“<a href="https://pan.quark.cn/s/cb6835dc7db1" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">前端免费学习笔记（深入）</a>”；</p>        </section><section id="about"><h2>about us</h2>            <p>we provide excellent web development services.</p>        </section><section id="services"><h2>our services</h2>            <p>we offer a wide range of web development services.</p>        </section><section id="contact"><h2>contact us</h2>            <p>feel free to reach out to us for any inquiries.</p>        </section></main><footer><p>© 2024 my responsive website</p>    </footer>

* {    margin: 0;    padding: 0;    box-sizing: border-box;}body {    font-family: arial, sans-serif;    line-height: 1.6;}header {    background: #333;    color: #fff;    padding: 1rem 0;}header h1 {    text-align: center;}nav ul {    display: flex;    justify-content: center;    list-style: none;}nav ul li {    margin: 0 1rem;}nav ul li a {    color: #fff;    text-decoration: none;}main {    padding: 2rem;}section {    margin-bottom: 2rem;}footer {    background: #333;    color: #fff;    text-align: center;    padding: 1rem 0;    position: fixed;    width: 100%;    bottom: 0;}

@media (max-width: 768px) {    nav ul {        flex-direction: column;        align-items: center;    }    nav ul li {        margin: 0.5rem 0;    }    main {        padding: 1rem;    }}@media (max-width: 480px) {    header h1 {        font-size: 1.5rem;    }    nav ul li {        margin: 0.25rem 0;    }    main {        padding: 0.5rem;    }}