A gem to install Tailwind CSS - https://tailwindcss.com/
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Tailwind CSS Rails

The tailwindcss gem helps you to easily install the Tailwind CSS framework by using WebPack and the webpacker gem.

Table of contents

Installing the gem

In order to run the install generator from tailwindcss you need to add the webpacker gem, and run the installation setup for it.

Installing webpacker

You first need to add this to you Gemfile:

# Gemfile
gem 'webpacker', '~> 3.5'

# OR if you prefer to use master
gem 'webpacker', git: 'https://github.com/rails/webpacker.git'
yarn add https://github.com/rails/webpacker.git

# OR to try out 4.x pre-release
gem 'webpacker', '>= 4.0.x'
yarn add @rails/webpacker@4.0.0-pre.2

Finally, run following to install Webpacker:

bundle exec rails webpacker:install

# OR (on rails version < 5.0)
bundle exec rake webpacker:install

You are now ready to add the tailwindcss gem

Installing Tailwind CSS

You need to include the tailwindcss gem inside your Gemfile:

gem 'tailwindcss', '~> 0.2.0'

or you can install the latest build:

gem 'tailwindcss', git: 'https://github.com/IcaliaLabs/tailwindcss-rails.git'

Install the gem by running the bundle command:

$ bundle

After running the bundle command, you can now run the installer.

$ rails g tailwindcss:install

This will prepare the application to use tailwind by:

  1. Adding tailwind by using yarn
  2. Create a javascript/css directory
  3. Init tailwind from the node_modules
  4. Setup tailwind
  5. Configure .postcssrc.yml file

If you want to know how this is achieve, you can go here.

Lastly but not least, you have to add this two lines to your application layout in order to compile it.

<%= stylesheet_pack_tag    'application' %>
<%= javascript_pack_tag 'application' %>

This two lines will compile the assets from the app/javascript/css folder.

Don't forget to run the webpacker server like so:


This will lift a node server that will watch the changes on files and compile them.


Bug reports and pull requests are welcome on GitHub at https://github.com/IcaliaLabs/tailwindcss-rails. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Tailwindcss project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.