From this, we can conclude that SGML was not a system for marking up text and did not have any list of language building blocks to be used in specific contexts. The language implied a description of the syntax for writing the main markup elements. After a while, they were given what is now well-known as “tags.” It was quite obvious that there was a need to create a language that:

– Described which element in which cases it is reasonable to apply;

– Contains a list of elements that can be used to create a document readable by various programs applicable in applications developer jobs.

While the SGML, like its sister applications, was not well developed, it was not completely abandoned. In 1991, the European Institute for Particle Physics announced the need to develop a mechanism to enable the transfer of hypertext information over the Global Web. It was the SGML that formed the basis of the future language – Hyper Text Markup Language (HTML).

Formative stages

HTML version 1.2 contained around forty tags. There was no description of the physical representation of the documents. Like its progenitor, SGML, it was mainly concerned with logical and structural markup of text. However, some hints at how the physical presentation of the page and the number of tags still did. The W3C consortium developed HTML version 2.0. The first result was obtained after a year of intensive work in 1995. Version 3.0 was discussed almost in parallel. Whereas the second version could not be called significantly different from the first, the third version was an absolute breakthrough.

HTML 3.0 had some interesting new features:

– Markup of mathematical formulas;

– Page design tags;

– Embedding figures surrounded by text;

– Notes, etc.

However, this was not enough; the need for the visual design of hypertext …

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