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siimple is a light, responsive and open source framework for design flat and clean websites. It has been built in SASS/SCSS and provides a clean starting point for your web design.

Getting started

siimple is available on npm, so you can run npm install siimple to install it in your project. It is also available on a CDN, so you can import the compiled CSS files directly on your HTML page.

You can also download a ZIP file with the code of each release, or clone the repository:

git clone

You can include siimple in your HTML files:

<link rel="stylesheet" href="./node_modules/siimple/dist/siimple.min.css">

Or you can import all the styles in your SASS/SCSS files:

@import "siimple/index.scss";

Or import only the styles that you need:

@import "siimple/scss/elements/_tip.scss";


The documentation website is available at The source code of the documentation is on this repository on the ./docs folder. Follow the instructions below to build the documentation in your computer.


Follow the steps described in this section if you are going to contribute, extend or modify siimple. Our main branch is develop, which reflects a state with the latest delivered development changes.

Setup environment

Follow these steps:

  1. Download and install Node.js on your computer.
  2. Clone this repository: git clone
  3. Navigate to the cloned repository folder, and run npm install to download all the dependencies listed in package.json.

We use Make to automatize the building of siimple.

Building siimple

Navigate to the root folder of the siimple module and run the following command:

$ make build

This will generate siimple.css and siimple.min.css on dist folder.

Running documentation locally

The documentation is generated using bundle and Jekyll. Make sure that you have them installed in your computer. Also, you will need bower to download some front end dependencies.

First, you should run the following command to download and configure all dependencies for the documentation:

$ make install

Then, to build the documentation you should run the following command:

$ make docs

This will generate a folder docs/_site with the generated static documentation website.


For questions and support, please use our community chat on Gitter. You can also follow @siimplecss on Twitter.

Bugs and new features

Found any bug? Have you a feature request? Please make sure to read our contributing guidelines and search for existing or similar issues. If your problem or idea is not addressed yet, please feel free to open a new issue!


We appreciate all contributions to the siimple project and help make it better! Please, read the contributing guidelines before starting your contribution.

Related projects

Project Description
siimple-rubygem siimple Ruby Gem for any type of Ruby web application
siimact siimact: A set of React components for Siimple CSS Framework

Have an awesome project or plugin related to siimple? Open a new issue and tell us! :)


Code and documentation of siimple © 2015-2018 Josemi Juanes. The code is released unde the MIT License and the documentation is released under the Creative Commons CC BY 4.0 License.

The siimple logo © 2018 Josemi Juanes. Released under the Creative Commons CC BY-SA 4.0 License.


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