前端模拟滚动条插件、OverlayScrollbars

http://manos.malihu.gr/jquery-custom-content-scroller/

http://www.htmleaf.com/jQuery/Form/201506091998.html

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https://nicescroll.areaaperta.com/?utm_source=caibaojian.com

http://caibaojian.com/nicescroll.html

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https://github.com/gromo/jquery.scrollbar

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OverlayScrollbars

 官方链接： https://kingsora.github.io/OverlayScrollbars/#!overview     （ 推荐使用这个）

 jquery 版本例子：

vue 版例子：