网页设计封面设置代码

<> <head> <style> .cover { background-image: url('cover.jpg'); background-size: cover; height: 100vh; display: flex; justify-content: center; align-items: center; color: #ffffff; text-align: center; font-size: 24px; } </style> </head> <body> <div class="cover"> <h1>欢迎访问我们的网站</h1> <p>这是一个演示封面页面</p> </div> </body> </html>