Adding Responsive Features Codealong <iframe width="640" height="480" src="//www.youtube.com/embed/qxxJhKd2VDE?rel=0&modestbranding=1" frameborder="0" allowfullscreen></iframe> Adding Responsive Features. Fork and clone to follow along with the video! View Adding Responsive Features Codealong on Learn.co and start learning to code for free.