The principle of common fate is vital to our perception of how the things around us are or are not related to one another. We use this principle’s mechanisms in almost every aspect of our lives, not just in our enjoyment and discrimination of design. In fact, without our perception and reliance on the principle of common fate, we could lose our very lives at any moment (cue dramatic music!).

Learn to make a simple particle system in HTML5 canvas and Javascript. This walkthrough is inspired by a video tutorial from @seb_ly. The particles are basically made of simple circles with radial gradients and random properties for velocity, size and color.

with CSS3 Transitions and Animations

Brand-new keyframe-based animation and interactive content creation tool for Mac OS X — with pure HTML5 output. Fire up their gallery of examples on your iPad or iPhone and get a glimpse of the future.

CSS3 transform UI