Circle Hover Effects with CSS Transitions

In today’s tutorial we’ll experiment with hover effects on circles. Since we have the border radius property, we can create circular shapes and they have been appearing more often as design elements in websites. One use that I especially enjoy seeing is the circular thumbnail which just looks so much more interesting than the usual rectangular. And because the circle is such a special shape, we are going to create some special hover effects for it!

Статья: http://tympanus.net/codrops/2012/08/08/circle-hover-effects-with-css-transitions/

Пример: http://tympanus.net/Tutorials/CircleHoverEffects/