CSS Zero

An opinionated CSS starter kit for your Ruby on Rails application. You can think of it like a "no build" Tailwind CSS.

Add this gem to your project.

bundle add css-zero

Add the base.css file to your application.

bin/rails generate css_zero:install

Add only the components you need. (Optional)

bin/rails generate css_zero:add accordion alert avatar badge breadcrumb button card carousel collapsible dialog flash input layouts pagination progress prose sheet skeleton switch table tabs toggle

If you are using Propshaft (recommended) make sure to load all the CSS files in your layout.html.erb.

<%= stylesheet_link_tag :all, "data-turbo-track": "reload" %>

If you are using Sprockets make sure to load all the CSS files in your application.css.

/*
*= require _reset
*= require animations
*= require borders
*= require colors
*= require effects
*= require filters
*= require grid
*= require sizes
*= require transform
*= require transition
*= require typography
*= require_tree .
*= require_self
*= require zutilities
*/

Some icons in the examples are not copied to the project. If you are looking for good ones, I recommend Lucide.

<h1 class="text-xl font-bold mb-4">
  Write most page content using utility classes.
</h1>

<div class="custom-component">
  Create components using CSS variables.
</div>

<div class="card">
  Optionally, copy pre-built components into your application.
</div>

.custom-component {
  background-color: var(--red-500);
  border-radius: var(--rounded);
  block-size: var(--size-4);
}

Check the CSS files in the repository to see the available variables and utility classes.

More components soon...

To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

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

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

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