<!doctype html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="renderer" content="webkit"> <meta name="viewport" content="width=device-width,initial-scale=1"> <title>浮动窗口</title> <style> .black_overlay { display: none; position: absolute; top: 0%; left: 0%; 100%; height: 100%; background-color: black; z-index: 1001; -moz-opacity: 0.8; opacity: .80; filter: alpha(opacity=80); } .white_content { display: none; position: absolute; top: 25%; left: 25%; 50%; height: 50%; padding: 0; border: 1px solid orange; background-color: white; z-index: 1002; overflow: auto; } </style> <script> function openWin(){ document.getElementById('light').style.display='block'; document.getElementById('fade').style.display='block' } function closeWin(){ document.getElementById('light').style.display='none'; document.getElementById('fade').style.display='none' } </script> </head> <body> <p><a href="javascript:void(0)" onclick="openWin()">点击这里打开窗口</a></p> <div id="light" class="white_content"> 这里是窗口内容 <a href="javascript:void(0)" onclick="closeWin()"> Close</a> </div> <div id="fade" class="black_overlay"></div> </body> </html>