This week, I’ve written about classless vs. class-based CSS, and how I approach CSS architecture. I’ve also written a fair bit recently about how I’m starting to consider build tools and anti-pattern. This has led to a few conversations about how to structure CSS and and work with modular files if you’re not using a compiler like Sass. Today, I wanted to talk about that. Let’s dig in! Modular files and build tools One of the big benefits of using a build tool like Sass or css-nano is that you break your CSS up into smaller, more modular files, then combine them into one file for deployment.