Perfect Scrollbar

screenshot of Perfect Scrollbar
bootstrap

Minimalistic but perfect custom scrollbar plugin. Get more free components with Material Design for Bootstrap UI Kit (link below)

bootstrap
Bootstrap

Bootstrap is the most popular CSS Framework for developing responsive and mobile-first websites.

rollup
Rollup

RollupJS is a popular and efficient JavaScript module bundler that takes the code from multiple modules and packages them into a single optimized file, minimizing the overall size of the application and improving its performance.