The React codebase that powers app.netlify.com is about five years old. During these five years, the focus has mostly been on high-speed growth, as most start-ups do. For this reason, what started with organised PostCSS gradually grew to become a complex and entangled global CSS architecture with a lot of specificity and overrides. As you might expect, there's a point where the added tech debt it
![From semantic CSS to Tailwind - Refactoring the Netlify UI codebase](https://cdn-ak-scissors.b.st-hatena.com/image/square/0f8b63d89e3779dbe9882a9a7d9f28edf4bec1e7/height=288;version=1;width=512/https%3A%2F%2Fcdn.sanity.io%2Fimages%2Fo0o2tn5x%2Fproduction%2Fed4cafabc1479130ef42556a8d5bb8b68e752b82-1300x683.png)