Tailwin-ui is Free and Open Source. It does not change or add any CSS to the already one from TailwindCSS 2.0. It features multiple HTML elements that can be used in all web projects who's use tailwind CSS.
Install package @tailwindcss/forms is designed for Tailwind CSS v2.0.
Install the plugin from npm:
# Using npm
npm install @tailwindcss/forms
# Using Yarn
yarn add @tailwindcss/forms