HTML and CSS Reference
A basic set of HTML and CSS files to code a project with HTML5 for various
browsers including older versions of Internet Explorer.
HTML5 Rocks is a playground of HTML5 examples and tutorials produced by
This is the W3's home of the HTML5 specification.
The act of detecting which browser a site visitor is using is '90s thinking. In this
new millennium, web builders check to see if the feature is present in the browser
like GeoLocation, WebSockets and even CSS3 properties.
When you need to know if a browser supports a feature of HTML5 or not, When
Can I Use is one of the easier, if not easiest, references to check.