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HTML Editors

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What is HTML?

HTML is the standard markup language for creating Web pages.


A Simple HTML Document

Example

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>This is a Heading</h1>
<p>This is a paragraph.</p>

</body>
</html>
Try it Yourself »

Example Explained


HTML Tags

HTML tags are element names surrounded by angle brackets:

<tagname>content goes here...</tagname>

Tip: The start tag is also called the opening tag, and the end tag the closing tag.


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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 Example

HTML Page Structure

Below is a visualization of an HTML page structure:

HTML Page Structure

Note: Only the content inside the <body> section (the white area above) is displayed in a browser.


The <!DOCTYPE> Declaration

The <!DOCTYPE> declaration represents the document type, and helps browsers to display web pages correctly.

It must only appear once, at the top of the page (before any HTML tags).

The <!DOCTYPE> declaration is not case sensitive.

The <!DOCTYPE> declaration for HTML5 is:

<!DOCTYPE html>

HTML Versions

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

Version Year
HTML 1991
HTML 2.0 1995
HTML 3.2 1997
HTML 4.01 1999
XHTML 2000
HTML5 2014

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