<style type="text/css">/*遮罩在加载页面上的div样式*/.loading{width: 100%;height: 100%;position: fixed;top: 0;left: 0;z-index: 100;background: white;}/*动态图片*/.pic{width: 64px;height: 64px;background: url(img/loading.gif);position: absolute;top: 0;bottom: 0;left: 0;right: 0;margin: auto;}</style><script type="text/javascript">/*定时器加载*//*$(function(){setInterval(function(){$(".loading").fadeOut();},3000);});*//*通过加载状态事件*/document.onreadystatechange = function(){if(document.readyState == ‘complete‘){$(".loading").fadeOut();}}</script> ???????<body> ???????????????<div class="loading"><div class="pic"></div></div> ???????????</body>
常见的网页加载进度条
原文地址：http://www.cnblogs.com/vijayxu/p/7470266.html