点击运行
<!DOCTYPE html> <html> <head> <style> .container { position: relative; width: 50%; } .image { opacity: 1; display: block; width: 100%; height: auto; transition: .5s ease; backface-visibility: hidden; } .middle { transition: .5s ease; opacity: 0; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%) } .container:hover .image { opacity: 0.3; } .container:hover .middle { opacity: 1; } .text { background-color: #4CAF50; color: white; font-size: 16px; padding: 16px 32px; } </style> </head> <body> <h1>淡入框</h1> <div class="container"> <img src="/zy/i/css/avatar.png" alt="Avatar" class="image" style="width:100%"> <div class="middle"> <div class="text">John Doe</div> </div> </div> </body> </html>
运行结果
