The output.css file is generated by Tailwind’s build process (typically via PostCSS or a build script), and generated files like this are usually not committed to version control. Here’s why: 1. Source of Truth: The actual source is your Tailwind config and the input CSS (usually input.css or something similar). output.css is just a compiled artifact. 2. Reproducibility: Anyone working on the project can run the build process locally (npm run build or similar) to regenerate output.css. No need to store it in Git. 3. Avoid Merge Conflicts: Since it’s a large, machine-generated file, any small change can cause massive diffs, which are messy and annoying to resolve during merges. 4. Deployment: On production servers, you’d usually compile static files as part of your deployment pipeline (collectstatic for Django and npm run build or similar for Tailwind).

Typical .gitignore example: