Pattern libraries are becoming better known as sites such as the BBC and A List Apart release their pattern libraries publicly. For the uninitiated, a pattern library is a collection of elements used on a web site. They define everything from the base font to page layouts.
Brad Frost and Dave Olsen’s Pattern Lab is one tool for creating a style guide. As the demo shows, it combines both a style guide and a method for testing the responsiveness of a web site.
When creating a style guide using Pattern Lab for your site, it’s necessary to store the /source directory in your Git repo.