GitHub is where people build software. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects.

Nevertheless, declarative animation in CSS is still an attractive solution, and I wanted to use the technology today. I therefore developed a prototype script (raw) which implements a subset of CSS ...

Ryan Boudreaux includes all the code snippets you'll need in this demo of how to create an image hover-preview effect using HTML, CSS, and JavaScript.