Annoying shouldn't be ugly, or cute animated validation.

You are going to annoy your users, if your website has at least 1 input/select/textarea/.../any other type of control, with validation.

So why we dont make it at least visually pleasant and entertaining?😃

I've already highlighted ho fascinated 3d in 2d css can be, this week codePen challenge is about errors, and 3d rotating cube as validation error mark is perfect solution!