HTML is the language that all web pages are written in. There are four versions of HTML currently in use, each with its own set of features and limitations. HTML 4, XHTML 1.0 Transitional, XHTML 1.1 (Extensible HyperText Markup Language), and HTML5 (the latest version). HTML is a markup language for describing web page content. HTML has three major versions. The first version was released in the 1990s, the second in 1995, and the third in 1997.
The different versions of HTML are an important part of how the internet has changed over time. One of the most significant changes that occurred was when HTML 2 became the standard format for all browsers to follow. That means that all content-creating software had to be updated to comply with it. Though this may sound restrictive and outdated now, it was a huge leap forward for internet standards at the time.
HTML 1: Released in the 1990s this version didn’t include any new features but did introduce a few elements not found on early web pages. XHTML is a markup language that helps web browsers and other applications to present and interpret the content on web pages in a way that makes it easy for people to read, understand, and interact with. XHTML relies heavily on standards such as those from XML, HTML, CSS, JavaScript, WAI-ACAA accessibility principles. There are two versions of XHTML: XHTML 1.0 Transitional (a transitional version of HTML 4) and XHTML 1.1 (an updated version of HTML4). The latest version is an update of HTML5.
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