Val Head shows how to use animation-fill-mode and explains in which situations it’s useful. After reading and watching this you’ll know (basically) everything there is to know about animation-fill-modes.
Steven Bradley explains how to work with transparency and shows a couple of different ways to create transparent elements in web pages.
Louis Lazaris explains how to detect transition and animation end with jQuery — something that will surely be useful for you.
Dudley Storey explains how to use clever CSS positioning to create appealing (and apparently very popular) effect.
Are you still creating CSS sprites by hand? If so, Peter J Langley will convince you that it’s time to start using Sass and Compass for automatic sprite generation. Trust me, that’s a huge time saver.
If you’re tired of manually refreshing browser every time you make a few changes in CSS, you’ll love style injection. You’ll find out exactly what style injection is and how it works in this article.
Erol Mujak shows how to create a nice looking gradient background, using any image and a couple of lines of CSS.
One div is a collection of pure CSS icons created with single HTML element. Main advantage of these icons is that they’re resolution independent, while their only drawback is poor browser compatibility. Overall, this is a very interesting and inspiring project worth of your attention.