HTML 4
HTML 4 is a version of the HyperText Markup Language, a standard markup language used to create and structure content on the web. It introduced features like improved support for style sheets, scripting, and accessibility, and was widely adopted for building static and dynamic web pages. It served as a foundational technology for web development before being succeeded by HTML5.
Developers should learn HTML 4 to understand the historical evolution of web standards and for maintaining or updating legacy websites that still use this version. It is essential for working with older web applications, as many were built during its peak usage in the late 1990s and early 2000s, and knowledge of its syntax and limitations helps in transitioning to modern HTML5.