HTML Introduction

What is HTML?

HTML is the standard markup language for making Web pages.

  • HTML means Hyper Text Markup Language
  • HTML stand structure of Web pages using markup language
  • HTML tags are the building structure of HTML pages
  • HTML elements are represented by blocks or tags
  • HTML tags label pieces of content such as “paragraph “, ” heading “, “div”, and so on
  • Browsers don’t show the HTML tags, but use them to make the content of the pages or website

A Simple HTML Document

Example

<!DOCTYPE html>
<html>
<head>
<title>Page Title as per your webs page</title>
</head>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>

Example Explained

  • The <!DOCTYPE html> declaration defines this document to be HTML5
  • The <html> element is the root element of an HTML page
  • The <head> element contains meta information about the document
  • The <title> element specifies a title for the document
  • The <body> element contains the visible page content
  • The <h1> element defines a large heading
  • The <p> element defines a paragraph

HTML Tags

HTML tags are element names by angle brackets:

<tagname>content goes here…</tagname>

  • HTML tags 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 forward slash inserted before the tag name

Tip: The start tag is also called the opening tag, and the end tag 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 Page Structure

Below is a visualization of an HTML page structure:<html><head><title>Page title</title></head><body><h1>This is a heading</h1><p>This is a paragraph.</p><p>This is another paragraph.</p></body></html>

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:

VersionYear
HTML1991
HTML 2.01995
HTML 3.21997
HTML 4.011999
XHTML2000
HTML52014
Updated: February 1, 2019 — 4:18 am
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