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HTML

What is HTML ?

HTML Editors

HTML Basic Examples

HTML Elements

HTML Attributes

HTML Headings

HTML Paragraphs

HTML Formatting

HTML Styles

HTML Quotations

HTML ComputerCode

HTML Comments

HTML Styles - CSS

HTML Links

HTML Tables

HTML Lists

What is HTML

HTML is a markup language for describing web documents (web pages).

  • HTML stands for Hyper Text Markup Language
  • A markup language is a set of markup tags
  • HTML documents are described by HTML tags
  • Each HTML tag describes different document content

HTML Example

<!DOCTYPE html>
<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>

Example Explained

  • The DOCTYPE declaration defines the document type
  • The text between <html> and </html> describes the web document
  • The text between <body> and </body> describes the visible page content
  • The text between <h1> and </h1> describes a heading
  • The text between <p> and </p> describes paragraph

Using the description, a web browser can display a document with a heading and a paragraph.

HTML Tags

HTML tags are keywords (tag names) surrounded by angle brackets:

<tagname>content</tagname>
  • HTML tags normally come in pairs like <p> and </p>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • The end tag is written like the start tag, but with a slash before the tag name
  The start tag is often called the opening tag. The end tag is often called the closing tag.

Web Browsers

The purpose of a web browser (Chrome, IE, Firefox, Safari) is to read HTML documents and display them.

The browser does not display the HTML tags, but uses them to determine how to display the document:



HTML Versions

Since the early days of the web, there have been many versions of HTML:

Version Year
HTML 1991
HTML+ 1993
HTML 2.0 1995
HTML 3.2 1997
HTML 4.01 1999
XHTML 2000
HTML5 2012


The <!DOCTYPE> Declaration

The <!DOCTYPE> declaration helps the browser to display a web page correctly.

There are many different documents on the web, and a browser can only display an HTML page correctly if it knows the HTML version and type.


Common Declarations

HTML5

<!DOCTYPE html>

HTML 4.01

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

XHTML 1.0

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  All tutorials and examples at W3Schools use HTML5.