Here is a great example but an even better writeup on the full process. Some great details on the inner working on css3 animations and the different browser implementations. It's amazing the things that css can accomplish now, especially when we don't support ie! Jokes!
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A Pure CSS3 Cycling Slideshow | Smashing Coding
Thanks to CSS3, we can create effects and animations without using JavaScript, which will facilitate the work of many designers.
