HTML Introduction

HTML Introduction – HTML is the standard markup language for creating Web pages.


HTML Intro – What is HTML?

  • HTML stands for Hyper Text Markup Language
  • HTML explains the structure of a Web page
  • HTML includes of a series of elements
  • HTML elements tell the browser how to display the content
  • HTML elements are represented by tags
  • HTML tags label pieces of content such as “heading”, “paragraph”, “table”, and so on
  • The purpose of a web browser is to read HTML documents and display them correctly.

A Simple HTML Document

Example

<!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 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 surrounded by < , > :

<tagname>content goes here…</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 forward slash inserted before the tag name

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

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

Start tag Element content End tag
<h1> My First Heading </h1>
<p> My first paragraph. </p>
<br> none none

Note: Some HTML elements have no content (like the <br> element). These elements are called empty elements. Empty elements do not have an end tag!


Web Browsers

browsers (Chrome, Edge, Firefox, Safari) do not show the html tags, but use them to render the content of the page. The purpose of a web browser is to read HTML documents and display them correctly. HTML Introduction


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) will be displayed in a browser.

HTML History

Since the early days of the World Wide Web, there have been many versions of HTML:

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
This tutorial follows the latest HTML5 standard.

www.w3schools.com

3D Effect

Portal scene

UI Design