CSS Class selectors

One of the best css class selector tutorial. Strongly suggest you to read it.

* Type selectors
* Class selectors
* ID selectors
* Descendant selectors
* Child selectors
* Universal selectors
* Adjacent sibling selectors
* Attribute selectors
* Pseudo-classes
* Pseudo-elements



Source: Selectutorial: Class selectors: "- Sent using Google Toolbar"