This free video course show you from A to z how to build and deploy a modern SaaS application using the most popular open-source software.

Stylemug is a fast css-in-js library that extracts atomic CSS rules to a .css file. It generates atomic CSS from the static stylesheets defined in JS. The compiled rules are extracted to a .css file.The stylesheet code in the Javascript bundle is replaced (no CSS in JS) with a hash map for classnames lookup at runtime.

The responsive images spec is fantastic and covers a lot of use cases, but in my experience, most of the time you’ll only need to understand one of them ... Post written by Scott Vandehey