HTML5, CSS3 and WordPress

Status of HTML5/CSS3

Browser Support

New Elements

Organization: — section, article, header, footer, aside, nav, hgroup
Annotation — mark, small, time, figure
Media Elements — video, audio, canvas

New Global Attributes

data-, contenteditable, spellcheck

New Input Types

required, placeholder, search, tel, url, email, date, time, number range, color

CSS3 Goodies

text-shadow, box-shadow, border-radius, tranform, transition