HTML or The HyperText Markup Language is the standard language which is used to create the web pages which you view within a web browser.
The HTML elements within a websites page are the building blocks which are constructed to show semantic items such as headings, paragraph text, lists, links and quotes or render images, videos and interactive items such as forms.
The HTML within a website is setup to also embed and work alongside other programs such as Javascript which is a scripting language which creates dynamic elements and behaviours within a website or website's page. The inclusion of other languages such as CSS are also used to define the design, structure and layout of content.
HTML versions
HTML has gone through various stages of development since it was first developed and proposed by Tim Berners-Lee in 1980 for CERN researchers to share documents to what is now the latest standard of HTML 5 which was published as a W3C Recommendation on October 28, 2014.