CSS3 is the latest evolution of the Cascading Style Sheets language. It features options and effects such as rounded corners, shadows, gradients, transitions, or animations, as well as new layouts like multi-columns, flexible box, or grid layouts.

The social value of the Web is that it enables human communication, commerce, and opportunities to share knowledge. One of W3C’s primary goals is to make these benefits available to all people, whatever their hardware, software, network infrastructure, native language, culture, geographical location, or physical or mental ability.