收藏一个简单实用的JS弹框，通过隐藏和显示div来实现，代码来自脚本之家！
<html> <head> <title> LIGHTBOX EXAMPLE </title> <style> .black_overlay{ display: none; position: absolute; top: 0%; left: 0%; width: 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%; width: 50%; height: 50%; padding: 16px; border: 16px solid orange; background-color: white; z-index:1002; overflow: auto; } </style> </head> <body> <p> 可以根据自己要求修改css样式 <a href="javascript:void(0)" onclick="document.getElementById(‘light‘).style.display=‘block‘;document.getElementById(‘fade‘).style.display=‘block‘"> 点击这里打开窗口 </a> </p> <div id="light" class="white_content"> This is the lightbox content. <a href="javascript:void(0)" onclick="document.getElementById(‘light‘).style.display=‘none‘;document.getElementById(‘fade‘).style.display=‘none‘"> Close </a> </div> <div id="fade" class="black_overlay"> </div> </body> </html>
原文：http://www.cnblogs.com/showersun/p/3669183.html