Notify or get quick approval from your users quickly and with style. This alert system uses css animations and background (so there are no images or js animation code...so it's really lightweight).
It's easy to implement and really easy to change the style.
Take a look at the demo: http://ssssnakes.com/smoke/.
- Chrome
- Firefox
- Safari
- IE 9+ (usable, no animation)
- iOS Mobile Safari
- IE 7/8
(untested in other mobile browsers)