Recent Features
![Responsive and Infinitely Scalable JS Animations]()
Responsive and Infinitely Scalable JS Animations
Back in late 2012 it was not easy to find open source projects using
requestAnimationFrame()- this is the hook that allows Javascript code to synchronize with a web browser's native paint loop. Animations using this method can run at 60 fps and deliver fantastic...![Page Visibility API]()
Page Visibility API
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
Incredible Demos
![Chris Coyier’s Favorite CodePen Demos IV]()
Chris Coyier’s Favorite CodePen Demos IV
Did you know you can triple-heart things on CodePen? We’ve had that little not-so-hidden feature forever. You can click that little heart button on any Pen (or Project, Collection, or Post) on CodePen to show the creator a little love, but you can click it again...
![CSS Filters]()
CSS Filters
CSS filter support recently landed within WebKit nightlies. CSS filters provide a method for modifying the rendering of a basic DOM element, image, or video. CSS filters allow for blurring, warping, and modifying the color intensity of elements. Let's have...




