jquery打造左侧跟随页面滚动的隐藏悬浮图层，当用户鼠标点击图层按钮后弹出显示图层居中显示，这个弹出的图层带关闭按钮。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="keywords" content="武鸣人网站,武鸣信息网,武鸣本地网,武鸣信息资源平台,减肥,健身,励志,励志语录,js特效,网页特效,www.wuming.ren">
<meta name="description" content="欢迎来到武鸣人信息资源平台，各种信息免费发布，资源共享合作共赢，分享互联网流行的励志语录经典短句，减肥健身健康小常识及打卡记录，收集各种js特效代码。">
<title>jquery实现左侧隐藏悬浮层特效_武鸣人</title>
<style>
body{text-align:center;font-size:12px;color:#333;font-family:"宋体";background:#fff;margin:0 auto;padding:0;}
body > div{text-align:center;margin-right:auto;margin-left:auto;}
div,form,ul,ol,li,span,p,dt,dd,dl{border:0;margin:0;padding:0;}
img,a img{border:0;margin:0;padding:0;}
h1,h2,h3,h4,h5,h6{font-size:12px;font-weight:400;margin:0;padding:0;}
ul,ol,li{list-style:none;}
td{word-break:break-all;}
a{color:#003cc8;text-decoration:none;}
a:hover{text-decoration:underline;color:blue;}
.f_tahoma{font-family:Tahoma;}
em,i{font-style:normal;}
.askwwwwumingren{overflow:hidden;position:fixed;left:0px;top:200px;z-index:2}
.left_wuming{background:red;width:20px;height:80px;text-align:center;line-height:20px;display:block;color:#fff; }
.content{background:#999;width:800px;height:2000px;margin:0 auto}
* html,* html body /* 修正IE6振动bug */{background-image:url(about:blank);background-attachment:fixed;}
.askwwwwumingren{_position:absolute;_bottom:auto;_left:0;_top: expression(documentElement.scrollTop + 200 + "px");}
.page_wwwwumingren{width:0px; position:absolute;height:0px;left:0;top:0px;z-index:1;overflow:hidden;display:none}
.page_wwwwumingren div{border:1px solid #000;overflow:hidden;width:398px}
.page_wwwwumingren h1{height:40px;text-align:center;font-size:20px;color:#fff;background:red;line-height:40px}
.page_wwwwumingren h1 a{float:right;color:#000;margin-top:-15px}
.page_wwwwumingren p{padding:10px;line-height:22px;font-size:14px;text-align:left;background:#fff;height:400px;width:378px}
</style>
<script type="text/javascript" src="/img/jquery_wuming_ren.js"></script>
<script language="javascript">
$(function(){
$("#click_wuming_ren").click(function(){
var offset=$("#click_wuming_ren").offset().top;
$("#page_wwwwumingren").css("top",offset+"px");
$("#click_wuming_ren").hide();
$("#page_wwwwumingren").animate({
width: "400px",
height: "400px",
left: ($("body").width()/2-200)+"px",
top: (offset-100)+"px",
opacity: 'toggle'
}, 300 );
//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
return false;
})
$("#close_wuming_ren").click(function(){
var offset=$("#page_wwwwumingren").offset().top;
$("#page_wwwwumingren").animate({
width: "0px",
height: "0px",
left: "0px",
top: (offset+100)+"px",
opacity: 'toggle'
}, 300 );
$("#click_wuming_ren").show();
return false;
})
//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
})
</script>
</head>
<body>
<a href="https://www.wuming.ren">武鸣人</a>，各种信息资源免费发布，分享励志语录经典短句，减肥健身常识，各种js特效代码。网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)<hr>
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<script type="text/javascript" src="https://www.wuming.ren/ad/tc.js"></script>
<script type="text/javascript" src="https://www.wuming.ren/ad/a.js"></script>
<div class="askwwwwumingren">
<a class="left_wuming" href="#" id="click_wuming_ren">点击弹出</a>
</div>
<div class="content"><span style="color:#FF0000">需要加载js文件，请刷新页面后看效果！</span></div>
<div class="page_wwwwumingren" id="page_wwwwumingren">
<div>
<h1><a href="https://www.wuming.ren" id="close_wuming_ren">x</a>武鸣人</h1>
<p><a href="https://www.wuming.ren">武鸣人</a>，各种信息免费发布，资源共享合作共赢！</p>
</div>
</div>
</body>
</html>