Tailwind CSS requires two key configuration files: tailwind.config.js and postcss.config.js. If you don't run npx tailwindcss init -p, these files won't be generated, which can cause issues with Tailwind not working correctly.

• Missing tailwind.config.js: Without this file, Tailwind can't process your files or customize the framework.
• Missing postcss.config.js: PostCSS won't be set up, causing Tailwind's utilities to not be compiled correctly.

Solution:
Run

npx tailwindcss init -p

to generate both files. This ensures proper configuration and PostCSS setup, allowing Tailwind to work as expected.