Maybe you’ve seen this type of interaction already if you’ve taken a glance at Polymer’s paper components. The idea is that when a click event is triggered an orb like glow appears and then vanishes at the end of the event. It’s a nice and subtle way to provide user feedback when they interact with an element on your page, but also doesn’t break layout if it sits next to other items. We achieve the effect through the use of keyframe animations, class toggling with JavaScript and using the animationend listener made available via JavaScript. Read More →