Frequently Asked Questions

Q: What are @Rules?
A: "An at-rule is a CSS statement beginning with an at sign ( @ ) followed by an identifier and ending at the first semi-colon ( ; ) outside of a block or at the end of the first CSS block."

CSS @ Rule Information

Online video — annotated, remixed and popped

Videos on the web should work like the web itself: dynamic, full of links, maps and information that can be edited and updated live, says Ryan Merkley. On the TED stage he demos Mozilla's Popcorn Maker, a web-based tool for easy video remixing.

Ryan Merkley