On the web
- CSS-Tricks - Obviously
- Lea Verou - All of her stuff is awesome
- Eric Meyer - The master
- An amazing CSS reference on Codrops
🐊 Alligator.io recommends ⤵Advanced CSS and Sass: Flexbox, Grid, Animations and More!
Videos and screencasts
Anything by Lea Verou:
- The Missing Slice
- The Humble Border-Radius
- Colour Theory
- CSS3 Secrets: 10 things you might not know about CSS3
- More CSS Secrets: Another 10 things you may not know about CSS
- Codepen - Obviously, again!
- Pleeese Play - Online prefixer tool
- CSSmatic - Nifty little tools
- Cubiz-Bezier - Create your own easing functions
Front-end dev tools
These are not just CSS tools, but tools that are helpful in general for front-end stuff (HTML, CSS, SVG, JS,…):
- Yeoman - The web’s scaffolding tool
- Bower - A package manager
- Gulp - An alternative to Grunt
- CSS Secrets by Lea Verou - This book is the bomb. Just get it already!
You’re taking it to the next level and taking on Sass to write your CSS? Here’s a few good pointers to get started: