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 ...

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 ...

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 ...