Documentation

Introduction

HTML is the standard markup language for creating Web pages.

HTML is the standard markup language for creating Web pages
HTML describes the structure of a Web page
HTML consists of a series of elements
HTML elements tell the browser how to display the content
HTML elements label pieces of content such as "this is a heading",
"this is a paragraph", "this is a link", etc.


x = 5;
y = 6;
z = x + y;

Example

Example of HTML document

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>>
</body>
</html>

Example Explained

The <!DOCTYPE html> declaration defines that this document is an HTML5 document
The <html>element is the root element of an HTML page
The <head> element contains meta information about the HTML page
The <title> element specifies a title for the HTML page (which is shown in the browser's title bar or in the page's tab)
The <body> element defines the document's body, and is a container for all the visible contents, such as headings, paragraphs, images, hyperlinks, tables, lists, etc.
The <h1>element defines a large heading
The <p> element defines a paragraph


          x = 5;

          y = 6;

          z = x + y;

Element

An HTML element is defined by a start tag, some content, and an end tag: <tagname> Content goes here... </tagname>
The HTML element is everything from the start tag to the end tag: <h1>My First Heading</h1>
<p>My first paragraph.</p>
x = 5; y = 6; z = x + y;

Hello World

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>


         x = 5;

         y = 6;

         z = x + y;

HTML History

Year Version

1989 Tim Berners-Lee invented www

1991 Tim Berners-Lee invented HTML

1993 Dave Raggett drafted HTML+

1995 HTML Working Group defined HTML 2.0

1997 W3C Recommendation: HTML 3.2

1999 W3C Recommendation: HTML 4.01

2000 W3C Recommendation: XHTML 1.0

2008 WHATWG HTML5 First Public Draft

2012 WHATWG HTML5 Living Standard

2014 W3C Recommendation: HTML5

2016 W3C Candidate Recommendation: HTML 5.1

2017 W3C Recommendation: HTML5.1 2nd Edition

2017 W3C Recommendation: HTML5.2


        x = 5;
        y = 6;
        z = x + y;