Peter lists 20 CSS Tricks and Tips. We’ve covered some of these before.
Owen Briggs has a series of CSS box lessons that gives sample code for all the common web design layouts. This is focused on common problems and workarounds. When you are done with that, check out the rest of his CSS information.
Wicked elaborated tutorial by Stu Nicholls on how to use CSS hover to create a wicked photo gallery. If you want to jump to the end, you can see the working version here.
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September 10th, 2005
Different browsers handle some aspects of CSS differently. To make sure the formatting is the same across different browsers, developers use CSS hacks to hide code from one browser or another. CSS-Hack is a great wiki referencing this practice.
Huge list of CSS resources including over 100 demostrations and samples. If you want to do it in CSS, you will see it here.
Very detailed step-by-step directions for creating and customizing a CSS template.