Resource 1: HTML

HTML – Hyper Text Markup Language

HTML is the primary language for building/creating web pages.

HTML is an easy-to-learn markup language.

HTML uses markup tags inside angle brackets like <p>), to define the elements of a web page:

HTML Example

<body><h1>My First Heading</h1>

<p>My first paragraph.</p>


Try it yourself »
Click on the “Try it yourself” button to see how it works

HTML uses start tags and end tags to markup web page elements: In the example above, the <p> tag marks the start of a paragraph, and </p> marks the end of the paragraph.

By using simple HTML tags, web designers can add headers, paragraphs, text, tables, images, lists, programming code, etc, to a web page (HTML document).

Web browsers (IE, Firefox, Chrome, etc) read HTML documents, interpret the HTML tags, and display the proper output (without displaying the HTML tags):

According to the HTML standard, HTML should be used to define the content of web pages.

To define the visual style (color, size, appearance, layout, etc), CSS (Cascading Style Sheets) should be used (see next chapter).

What is HTML?

HTML is a language for describing web pages.

  • HTML stands for Hyper Text Markup Language
  • HTML is not a programming language, it is a markup language
  • A markup language is a set of markup tags
  • HTML uses markup tags to describe web pages


HTML markup tags are usually called HTML tags

  • HTML tags are keywords surrounded by angle brackets like <html>
  • HTML tags normally come in pairs like <b> and </b>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • Start and end tags are also called opening tags and closing tags

HTML Documents = Web Pages

  • HTML documents describe web pages
  • HTML documents contain HTML tags and plain text
  • HTML documents are also called web pages

The purpose of a web browser (like Internet Explorer or Firefox) is to read HTML documents and display them as web pages. The browser does not display the HTML tags, but uses the tags to interpret the content of the page:

Example Explained

  • The text between <html> and </html> describes the web page
  • The text between <body> and </body> is the visible page content
  • The text between <h1> and </h1> is displayed as a heading
  • The text between <p> and </p> is displayed as a paragraph