Simplebar
Overview Official Website
SimpleBar does only one thing: replace the browser's default scrollbar with a custom CSS-styled one without losing performances.
Javascript
<!-- simplebarjs -->
<script src="{{url_for('static' ,filename='libs/simplebar/dist/simplebar.min.js')}} "></script>
Add Package
yarn add simplebar --save
Remove Package
yarn remove simplebar or you can remove package by removing specific package from package.json