<div class="col-sm-6">
{% markdown %}
### Source files
-Download everything: source Sass, JavaScript, and documentation files. **Requires a Sass compiler, [Autoprefixer](https://github.com/postcss/autoprefixer), and some setup.**
+Download everything: source Sass, JavaScript, and documentation files. **Requires a Sass compiler, [Autoprefixer](https://github.com/postcss/autoprefixer), and [some setup]({{ site.baseurl }}/getting-started/build-tools/#tooling-setup).**
<a href="{{ site.download.source }}" class="btn btn-bs btn-outline" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download source');">Download source</a>
{% endmarkdown %}