What is HTML?
HTML is the standard markup language for creating Web pages.
- HTML stands for Hyper Text Markup Language
- HTML describes the structure of a Web page
- HTML consists 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
- Browsers do not display the HTML tags, but use them to render the content of the page
A Simple HTML Document
My First Heading
My first paragraph.
- The declaration defines this document to be HTML5
- The element is the root element of an HTML
- The element contains meta information about the document
element specifies a title for the document
- The element contains the visible page content
element defines a large heading
element defines a paragraph
HTML tags are element names surrounded by angle brackets:
- HTML tags normally come in pairs like
- 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.
The purpose of a web browser (Chrome, Edge, 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:
This is a heading
This is a paragraph.
This is another paragraph.
Note: Only the content inside thesection (the white area above) is displayed in a browser.
The 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 declaration is not case sensitive.
The declaration for HTML5 is:
Since the early days of the web, there have been many versions of HTML: