Archived posts, April 2010
Neglecting to style :focus when you style the :hover pseudo-class can lead to minor inconvenience at best and complete inaccessibility at worst for non-mouse users.
Specifying the natural language of complete and partial HTML documents really does make a difference to users of screen readers that support language switching.
HTML5 adds many new types of useful form controls. Some browsers support some of them already.
An absolute must read for any web designer or developer, even if you think you know everything about progressive enhancement already.
Improved inspection of CSS, HTML, and DOM, following redirects in the Resources panel, and getting tips for improving performance in the Timeline and Audits panels are some new features.
Having built-in semantics and accessibility in HTML5 is great, but I think we also need specifications like WAI-ARIA that let us add accessibility to less than ideal markup.