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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Bin</title>
</head>
<body>
<div class="header">
  这里是页面头部
    <button class="gotags">找到标签的位置</button>
</div>
    
<div class="content" style="height:999px; background: #cecece">
这里是页面内容
<a href="http://yijile.com/log/501.html" style="display: block; position: fixed; right: 15px; bottom: 15px; padding: 20px; font-size: 18px; background-color: #CF343F; color: #fff;">返回文章</a>
<div>
<ins class="adsbygoogle"   style="display:block"  data-ad-client="ca-pub-2944385871993620" data-ad-slot="2542496394"  data-ad-format="auto"></ins>
<script>(adsbygoogle = window.adsbygoogle || []).push({});</script> </div>
    </div>
    
<div id="tags">
  这里是页面标签
    <button class="gotop">滚回顶部</button>
    
<div>
    <ins class="adsbygoogle" style="display:inline-block;width:320px;height:50px"  data-ad-client="ca-pub-2944385871993620" data-ad-slot="8728630794"></ins>
  <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script>
    </div>  
</div>
    
    
    
  <script src="http://cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
  <script>
$(document).ready(function(){
​
  $(".gotop").click(function(){
    $(document.body).animate({'scrollTop':0},100);
  });
​
  $(".gotags").click(function(){
    $(document.body).animate({scrollTop: $('#tags').offset().top}, 1000);
  });
​
});
  </script>
    
    
    
    
    
    
​
    
    
    
    
    
    
    
    
    
    
<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
</body>
</html>
 
ins{margin:50px 0;}
div{padding:20px;}
button{padding: 0 20px; height: 2em; line-height:2em; background: #4CAF50; color:#fff; border:0; font-size: 20px;}
body{ font-family: 'source Han Sans','Roboto', sans-serif;}
Output

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