Going on right now is the three-day, online conference CSS Summit 2013 produced by Environments for Humans, featuring speakers from Sass, Adobe, and Google (to name a few), all about CSS.
Yesterday featured CSS3 training covering topics from CSS3 selectors and flexbox to typography and CSS3 games.
It may be worth attending today if you are looking to add a few advanced skills to your CSS toolbox, including:
- Automated CSS Testing
- Animating CSS Infographics
- Performance testing your CSS
- Responsive images
Tomorrow it's all about preprocessors, with a focus on Sass.
If you're up to speed with CSS3 spec, you didn't miss much yesterday, but you can still attend today and tomorrow.
It's a bit expensive, though, with individual tickets priced at about $180. "Meeting Room" tickets are even more expensive, at $479.