Element: read official documentation
Clean UI HTML – a modern professional admin template, based on Bootstrap 4 framework. Clean UI HTML is a powerful and super flexible tool, which suits best for any kind of web application: Web Applications; CRM; CMS; Admin Panels; Dashboards; etc. Clean UI HTML is fully responsive, which means that it looks perfect on mobiles and tablets
Clean UI HTML is fully based on SASS pre-processor, includes 50+ commented SASS files. Each file corresponds to a single component, layout, page, plugin or extension – so you can easily find necessary piece of code and edit it for your needs. The package includes both normal and minified CSS files, compiled from SASS