- Slides 6 - CSS Fundamentals
- MDN - CSS Tutorials for Beginners
- MDN - CSS Property Reference
- Tuts Plus - 30 CSS selectors to Memorize
- Learn More Pseudo Selectors
- CSS3.info - Using Web Fonts
- CSS Authority, Specificity
- CSS Performance & Organization, Best Practices
- CSS Validator
- CSS Diner Online Game
- Adobe - Color Scheme Tool
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