This was a talk about "accessibility" I gave the the Web Developers conference at Yahoo in London in December 2007. The basic premise is that accessibility isn't something special but comes from designing for use from the beginning. While one of the examples in the slides showing bad practice is from the Yahoo User Interface library I'd like to emphasise that that the YUI is mostly excellent for accessibility. It only goes to show that even great developers can make mistakes when they don't think things through all the way. This was covered in the talk but isn't in the slides. While one of

1. Designing for interactions not visuals Creative Commons

9. Degraded states uk.tv.yahoo.com www.yahoo.com

13. The Result? Epic Fail 2.0

16. Tree Structure in HTML <ul> <li> <ul> <li>Leaf 1</li> <li>Leaf 2</li> </ul> </li> <li>Leaf 3</li> </ul>

17. Checking criteria <ul> <li><span>1st Level, 2 Sub elements. Fully selected</span> <ul> <li><span>2nd Level, 0 Sub elements</span>Leaf 1</li> <li><span>2nd Level, 0 Sub elements</span>Leaf 2</li> </ul> </li> <li><span>1st Level, 0 Sub elements</span>Leaf 3</li> </ul>

18. Conclusions