HTML Introduction:
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
<!DOCTYPE html>
<html>
<head>
<title>Title of Page</title>
</head>
<body>
<h1>Heading</h1>
<p>paragraph.</p>
</body>
</html>
Example Explained
The <!DOCTYPE html> declaration defines this document to be HTML5The text between <html> and </html> describes an HTML document
The text between <head> and </head> provides information about the document
The text between <title> and </title> provides a title for the 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 a paragraph
Using this description, a web browser will display a document with a heading and a paragraph.
Common <!DOCTYPE> Declarations
HTML 5:
<!DOCTYPE html>HTML 4.0.1:
<!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">
HTML Versions:
Since the early days of the web, there have been many versions of HTML:
HTML ---------------------------------- 1991
HTML 2.0 ---------------------------------- 1995
HTML 3.2 ---------------------------------- 1997
HTML 4.0.1 ---------------------------------- 1999
XHTML ---------------------------------- 2000
HTML 5 ---------------------------------- 2014
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