Nick Babich writes very interesting articles on UX Planet and usually they include amazing animations. But it seems like they are created using After Effects or similar program. I got the idea from this article and tried to create the animation of the funny face using CSS and JS.
See the Pen Funny face (controlled with mouse) by Ivan Bogachev (@sfi0zy) on CodePen.
Simple UI framework. RSCSS, REM-based sizes, fluid typography and other nice ideas. This website is powered by it.