Bootstrap 4 framework template
Using Html5 pushState without reloading your page's layout or any resources (JS, CSS), giving the appearance of a fast, full page load.
Lazy load modules
Load modules & components on demand (lazy load) with jQuery.
Its source code utilizes Sass, a popular CSS preprocessor. Quickly get started with precompiled CSS or build on the source.
NPM & Grunt
Automate development tasks, like compiling Sass to CSS, concatenating and minifying js files; NPM manages frameworks, libraries, assets, and utilities.