HTML (Hypertext Markup Language) is a text-based approach to describing how content contained within an HTML file is structured. This markup tells a web browser how to display text, images and other ...

Semantic Checker is a new and still experimental Firefox addon (download it here) highlighting semantic elements in the web page you are currently viewing. The tool should be used for on-page analysis ...

Keeping track of the ever-evolving HTML5 and CSS 3 support in today’s web browsers can be an overwhelming task. Sure you can use CSS animations to create some whiz-bang effects, but should you? Which ...

HTML5 has been billed as a means for developers to create modern Web applications, complete with support for multimedia functionality like video and Canvas 2D. Its emergence has led to questions about ...

To use positioning on an element, you must first declare its position property to be absolute or relative: H1 { position: absolute } Then you can add whatever ...