Object-oriented CSS

Glen Maddern: Internet Pro

Methodology / BEM. Methodology

CSS Guidelines. High-level advice and guidelines for writing sane, manageable, scalable CSS

Code Guide by @mdo. Standards for developing consistent, flexible, and sustainable HTML and CSS

SUIT CSS: style tools for UI components

necolas/idiomatic-css. Principles of writing consistent, idiomatic CSS. Contribute to necolas/idiomatic-css development by creating an account on GitHub.

GitHub’s CSS. I’m always interested in the development details of other products, particularly their styleguides and approach to CSS. Given my penchant for the otherwise inane CSS details, I decided to write a bit about GitHub’s CSS.

Trello CSS Guide. Trello CSS Guide. GitHub Gist: instantly share code, notes, and snippets.

CSS Architecture — Philip Walton. To many Web developers, being good at CSS means you can take a visual mock-up and replicate it perfectly in code. You don't use tables, and you pride yourself on using as few images as possible. If you're really good, you use the latest and greatest techniques like media queries, transitions and transforms. While all this is certainly true of good CSS developers, there's an entirely separate side to CSS that rarely gets mentioned when assessing one's skill.

rstacruz/rscss. Reasonable System for CSS Stylesheet Structure. Contribute to rstacruz/rscss development by creating an account on GitHub.

Enduring CSS: writing style sheets for rapidly changing, long-lived projects – Ben Frain

A Good Front-End Architecture - SitePoint. Matt goes through what we need from a good front-end architecture and outlines how we can create the structure for it.