what is codepen
CodePen is an online web editor - you simply create your HTML, CSS and JavaScript content and you get a live preview and result. It is good for demoing and prototyping, because you do not need a local installed web server.
CodePen is a playground for the front end web. Show off your latest creation and get feedback. Build a test case for that pesky bug. Find example design patterns and inspiration for your projects. Find out more Sign me up.