加载中 gif 图片：
页面效果：
源码
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>点击文字弹出一个DIV层窗口代码</title> <style> .black_overlay{display: none; position: absolute; top: 0%; left: 0%; width: 100%; height: 100%; background-color: black; z-index:1001; -moz-opacity: 0.6; opacity:.60; filter: alpha(opacity=66); } .white_content {display: none; position: absolute; top: 25%; left: 25%; width: 55%; height: 55%; padding: 20px; border: 10px solid orange; background-color: white; text-align: center;z-index:1002; overflow: auto; } </style> </head> <body> <a href = "javascript:void(0)" onclick = "document.getElementById('light').style.display='block';document.getElementById('fade').style.display='block'">请点这里</a></p> <!-- 加载中遮罩 --><div id="light" class="white_content" ><font size="5">正在努力转换中 ~ 此过程大约需要20秒，请耐心等待<br></font><img src='loading.gif' width='400px' height='300px'/></div> <div id="fade" class="black_overlay"></div> </body> </html>
