CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration.
CodePen is a playground for the front end side of the web. It's all about inspiration, education, and sharing.
Test your reflexes with Stairs Rush Reloaded, the addictive retro arcade jumping game where you need to tap the screen to move your character down the moving stairs without falling. Collect the diamonds on your way and compete with friends for the best scores!