<style type="text/css">
*{margin:0;padding:0;}
body{height:2000px;}
.floatAd{width:124px;height:299px; text-align:center; position:fixed;margin-left:0;top:109px; _position:absolute; background:url(//img.jbzj.com/demoimg/2014/bg_slide2_120_270.png) no-repeat;}
.floatAd a{display:block;}
.floatAd img{border:none;}
.floatAd .closeAd{width:50px; height:20px; display:block; cursor:pointer;margin:9px 0 0 auto;}
.flAd{left:0;}
.frAd{right:0;}
</style>
<div class="floatAd flAd">
<a href="#" target="_blank"><img src="/UploadFiles/2021-04-02/#">

我们还可以改下代码，实现“单边展示飘浮广告，多个广告轮播展示”的效果，更改后的源代码：


<style type="text/css">
*{margin:0;padding:0;}
body{height:2000px;}
.floatAd{width:124px;height:299px; text-align:center; position:fixed;margin-left:0;top:109px;right:0; _position:absolute; background:url(//img.jbzj.com/demoimg/2014/bg_slide2_120_270.png) no-repeat;}
.floatAd a{display:block;}
.floatAd img{border:none;}
.floatAd .closeAd{width:50px; height:20px; display:block; cursor:pointer;margin:9px 0 0 auto;}
</style>
<div class="floatAd">
<a href="#" target="_blank"><img src="/UploadFiles/2021-04-02/#">