Modern JavaScript from the Beginning - Second Edition - CSS and Style Loaders

The video tutorial explains how to import CSS files into JavaScript using webpack. It covers the installation of CSS and style loaders via npm, configuring webpack to use these loaders, and creating a CSS file to be imported into JavaScript. The tutorial also demonstrates how webpack bundles CSS and other files, resulting in clean production files. Finally, it introduces setting up an HTML plugin for automatic HTML generation.

Describe how to use regular expressions in the webpack configuration for CSS files.

What steps must be taken after creating a CSS file to see the changes reflected in the application?