What is HTML - A Simple Guide to HTML
www.simplehtmlguide.com/whatishtml.phpHTML Files. Every web page is actually a HTML file. Each HTML file is just a plain-text file, but with a .html file extension instead of .txt, and is made up of many HTML tags as well as the content for a web page.. A web site will often contain many html files that link to each other. You can edit HTML files with your favourite editor.
HTML - Wikipedia
https://en.wikipedia.org/wiki/HTMLHTML markup consists of several key components, including those called tags (and their attributes), character-based data types, character references and entity references. HTML tags most commonly come in pairs like <h1> and </h1>, although some represent empty elements and so are unpaired, for example <img>. The first tag in such a pair is the start tag, and the second is the end tag (they are also called opening tags and closing tags).
HTML - Wikipedia
en.wikipedia.org › wiki › HTMLHTML 4 is an SGML application conforming to ISO 8879 – SGML. April 24, 1998 HTML 4.0 was reissued with minor edits without incrementing the version number. December 24, 1999 HTML 4.01 was published as a W3C Recommendation.