Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS) and JavaScript it forms a triad of cornerstone technologies for the World Wide Web. Web browsers receive HTML documents from a webserver or from local storage and render them into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.
Source: https://en.wikipedia.org/wiki/HTML.
Basic HTML 5 page layout looks like this:
<!doctype html> <html> <head> <title>Title</title> </head> <body> <h1>Heading text</h1> <p>Paragraph text comes here.</p> </body> </html>