Definition - What does Cascading Style Sheets Level 2 (CSS2) mean?
Cascading Style Sheets Level 2 (CSS2) is the second version of cascading style sheets developed by W3C. It's a declarative language used to enhance the hyperextensive text markup language. CSS2 is a subset of Cascading Style Sheets Level 1 and has enhanced capabilities like:
Media types concept
Aural style sheets
Features for internationalization
Extended font selection
Automatic numbering and generated content
Capability to control content overflow, clipping
Absolute, fixed and relative positioning
Extended selector mechanism
Currently, W3C does not provide any CSS2 recommendations. CSS2 have backward compatibility, so all valid CSS1 is also valid CSS2.