CSS is a programming language for adding styles to HTML documents, allowing for the addition of colors, animations, and perhaps a nerpoing to liven up a page's look. CSS stands for something but it's not super important.
Don't know CSS? This camp is a great way to learn.
On the web
On the web CSS is used to make websites pleasing to look at. Or not! It's up to you.
Off the web
???
Can you even do that??
On wikis
This is the most important use case of CSS we think. Just look at all these wonderful creations people have made!
Important attributes
resize- used for making click and drag minigamesborder-radius- used for making design better