CSS can be both a tricky and easy to learn. The syntax itself is easy, but some concepts can be difficult to understand.
This article features 20 excellent websites to help you “grok” CSS. There’s a wide range of websites included – from blogs to directory-style lists and websites that focus on one particular topic related to CSS.
1. A List Apart CSS Topics
A List Apart, the premier site to read articles about web design and best practices, has a collection of articles on the topic of CSS dating back to 1999. Most articles are geared towards intermediate to advanced developers who put a strong emphasize on standards-compliant designs.