The pattern gallery features many great examples of elements or layout created for responsive web design. Hosted on GitHub with code samples displayed via Codepen. Responsive Patterns by Brad Frost will be helpful for setting up commonly used design patterns in your responsive design projects.
It includes code snippets for layouts, navigation, media data, forms, text and many more. If you fancy helping the community with your coding skills, you can submit your own patterns and get it featured in the gallery.