jQuery implements return to top and bottom code with animation effect

jQuery implements return to top and bottom code with animation effect_jquery

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Release： 2016-05-16 15:33:55

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The example in this article describes how jQuery implements the code to return to the top and bottom with animation effects. Share it with everyone for your reference, the details are as follows:

This animated version of the return to top and bottom effect code is also a relatively common web page special effect. Taobao has this effect. It uses the jQuery plug-in and adds animation effects.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/jquery-animate-style-scroll-top-buttom-codes/

The specific code is as follows:

<!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>
<title>动画版的回到顶部和底部效果代码</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<style type="text/css">
body{padding:0px;margin:0px;}
#roll_top,#fall,#ct{position:relative;cursor:pointer;height:40px;width:15px;}
#roll_top{background:url(images/roll.png) no-repeat;}
#fall{background:url(images/roll.png) no-repeat 0 -80px;}
#ct{background:url(images/roll.png) no-repeat 0 -40px;}
#roll{display:block;width:15px;margin-right:-508px;position:fixed;right:50%;top:50%;_margin-right:-507px;_position:absolute;_margin-top:300px;_top:expression(eval(document.documentElement.scrollTop));}
</style>
<!--[if IE]>
<style type="text/css">
/* 修正IE6振动bug */
html,body{background-image:url(about:blank);background-attachment:fixed;}
</style>
<![endif]-->
<script type="text/javascript" src="jquery1.3.2.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($){
  $('#roll_top').click(function(){$('html,body').animate({scrollTop: '0px'}, 800);}); 
  $('#ct').click(function(){$('html,body').animate({scrollTop:$('.ct').offset().top}, 800);});
  $('#fall').click(function(){$('html,body').animate({scrollTop:$('.footer,.footer_a').offset().top}, 800);});
});
</script>
</head>
<body>
预览效果时左下角会提示错误，而且看不到效果，刷新一下就可以看到效果了<br>
<div class="head">这里是页面顶部</div>
<div id="roll">
  <div title="回到顶部" id="roll_top"></div>
  <div title="转到底部" id="fall"></div>
</div>
<div id="content" style="height:2000px;"></div>
<div class="footer">这里是页面底部</div>
</body>
</html>

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I hope this article will be helpful to everyone in jQuery programming.