CSS Methodologies
Object Oriented CSS (OOCSS)
Nicole Sullivan (@stubbornella)
Purpose: encourage code reuse and, ultimately, faster and more efficient stylesheets that are easier to add to and maintain.
OOCSS Slideshow by Stubbornella
Style Guide Driven Development (Discusses media block at 21:40 - 27:15)
Benefits of OOCSS
Faster websites (smaller file sizes = faster download/render)
Maintainable stylesheets (decreases specificity wars
Easy to reuse style modules
Easy to add new modules
Block Element Modifier (BEM) Syntax
Unlike OOCSS, it doesn't aim at total modularity but namespacing (through classes names), creating independent modules of css code that don't interact with each other
Uses "-, --, __" as separators
Mindbemding.. - Another great article
SMACSS
Smacss Introduction.. Video
"is more style guide than rigid framework"
Other notable methodologies & guides
Idiomatic CSS by Nicolas Gallagher (necolas)