Javascript 为什么纳米棒不起作用?

Javascript 为什么纳米棒不起作用?,javascript,html,css,nanoscroller,Javascript,Html,Css,Nanoscroller,我在代码中添加了nanoscrollbar,它有效果,但没有看到滚动条。我认为scroll的div有类窗格,但在检查时在DOM中甚至看不到它。少了什么? 我在下面添加了nano.css、jquery、nano.js链接 <script>$(document).ready(function(){$(".nano").nanoScroller();});</script> <body> <div id="about" class="nano">

我在代码中添加了nanoscrollbar,它有效果,但没有看到滚动条。我认为scroll的div有类窗格,但在检查时在DOM中甚至看不到它。少了什么? 我在下面添加了nano.css、jquery、nano.js链接

<script>$(document).ready(function(){$(".nano").nanoScroller();});</script>

<body>
<div id="about" class="nano">
    <div class="nano-content">
         This is the content box and it should be scrolling but it is not!! =/.  
        This is the content box and it should be scrolling but it is not!! =/.  This is the content box and it should be scrolling but it is not!! =/.  This is the content box and it should be scrolling but it is not!! =/.  This is the content box and it should be scrolling but it is  not!! =/.  
    </div> 
</div>        
</body>
$(document.ready(function(){$(“.nano”).nanoScroller();});
这是内容框,应该滚动,但不是!!=/。
这是内容框,应该滚动,但不是!!=/。这是内容框,应该滚动,但不是!!=/。这是内容框,应该滚动,但不是!!=/。这是内容框,应该滚动,但不是!!=/。

请出示您的浏览器控制台。我看到了,上面写着jQuery和$notdefined