HTML


Example Explained

  • The DOCTYPE declaration defines the document type
  • 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
lamp The <!DOCTYPE html> declaration is the doctype for HTML5.


What is HTML?

HTML is a language for describing web pages.

  • HTML stands for Hyper Text Markup Language
  • HTML is a markup language
  • A markup language is a set of markup tags
  • The tags describe document content
  • HTML documents contain HTML tags and plain text
  • HTML documents are also called web pages

HTML Tags

HTML markup tags are usually called HTML tags

  • HTML tags are keywords (tag names) 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
  • The end tag is written like the start tag, with a forward slash before the tag name
  • Start and end tags are also called opening tags and closing tags
<tagname>content</tagname>


HTML Elements

“HTML tags” and “HTML elements” are often used to describe the same thing.

But strictly speaking, an HTML element is everything between the start tag and the end tag, including the tags:

HTML Element:

<p>This is a paragraph.</p>
Tag Description
<!–…–> Defines a comment
<!DOCTYPE> Defines the document type
<a> Defines a hyperlink
<abbr> Defines an abbreviation
<acronym> Not supported in HTML5. Defines an acronym
<address> Defines contact information for the author/owner of a document
<applet> Not supported in HTML5. Deprecated in HTML 4.01. Defines an embedded applet
<area> Defines an area inside an image-map
<article>New Defines an article
<aside>New Defines content aside from the page content
<audio>New Defines sound content
<b> Defines bold text
<base> Specifies the base URL/target for all relative URLs in a document
<basefont> Not supported in HTML5. Deprecated in HTML 4.01. Specifies a default color, size, and font for all text in a document
<bdi>New Isolates a part of text that might be formatted in a different direction from other text outside it
<bdo> Overrides the current text direction
<big> Not supported in HTML5. Defines big text
<blockquote> Defines a section that is quoted from another source
<body> Defines the document’s body
<br> Defines a single line break
<button> Defines a clickable button
<canvas>New Used to draw graphics, on the fly, via scripting (usually JavaScript)
<caption> Defines a table caption
<center> Not supported in HTML5. Deprecated in HTML 4.01. Defines centered text
<cite> Defines the title of a work
<code> Defines a piece of computer code
<col> Specifies column properties for each column within a <colgroup> element
<colgroup> Specifies a group of one or more columns in a table for formatting
<command>New Defines a command button that a user can invoke
<datalist>New Specifies a list of pre-defined options for input controls
<dd> Defines a description of an item in a definition list
<del> Defines text that has been deleted from a document
<details>New Defines additional details that the user can view or hide
<dfn> Defines a definition term
<dir> Not supported in HTML5. Deprecated in HTML 4.01. Defines a directory list
<div> Defines a section in a document
<dl> Defines a definition list
<dt> Defines a term (an item) in a definition list
<em> Defines emphasized text
New Defines a container for an external (non-HTML) application
<fieldset> Groups related elements in a form
<figcaption>New Defines a caption for a <figure> element
<figure>New Specifies self-contained content
<font> Not supported in HTML5. Deprecated in HTML 4.01. Defines font, color, and size for text
<footer>New Defines a footer for a document or section
<form> Defines an HTML form for user input
<frame> Not supported in HTML5. Defines a window (a frame) in a frameset
<frameset> Not supported in HTML5. Defines a set of frames
<h1> to <h6> Defines HTML headings
<head> Defines information about the document
<header>New Defines a header for a document or section
<hgroup>New Groups heading (<h1> to <h6>) elements
<hr> Defines a thematic change in the content
<html> Defines the root of an HTML document
<i> Defines a part of text in an alternate voice or mood
<iframe> Defines an inline frame
<img> Defines an image
<input> Defines an input control
<ins> Defines a text that has been inserted into a document
<kbd> Defines keyboard input
<keygen>New Defines a key-pair generator field (for forms)
<label> Defines a label for an <input> element
<legend> Defines a caption for a <fieldset>, < figure>, or <details> element
<li> Defines a list item
<link> Defines the relationship between a document and an external resource (most used to link to style sheets)
<map> Defines a client-side image-map
<mark>New Defines marked/highlighted text
<menu> Defines a list/menu of commands
<meta> Defines metadata about an HTML document
<meter>New Defines a scalar measurement within a known range (a gauge)
<nav>New Defines navigation links
<noframes> Not supported in HTML5. Defines an alternate content for users that do not support frames
<noscript> Defines an alternate content for users that do not support client-side scripts
<object> Defines an embedded object
<ol> Defines an ordered list
<optgroup> Defines a group of related options in a drop-down list
<option> Defines an option in a drop-down list
<output>New Defines the result of a calculation
<p> Defines a paragraph
<param> Defines a parameter for an object
<pre> Defines preformatted text
<progress>New Represents the progress of a task
<q> Defines a short quotation
<rp>New Defines what to show in browsers that do not support ruby annotations
<rt>New Defines an explanation/pronunciation of characters (for East Asian typography)
<ruby>New Defines a ruby annotation (for East Asian typography)
<s> Defines text that is no longer correct
<samp> Defines sample output from a computer program
<script> Defines a client-side script
<section>New Defines a section in a document
<select> Defines a drop-down list
<small> Defines smaller text
<source>New Defines multiple media resources for media elements (<video> and <audio>)
<span> Defines a section in a document
<strike> Not supported in HTML5. Deprecated in HTML 4.01. Defines strikethrough text
<strong> Defines important text
<style> Defines style information for a document
<sub> Defines subscripted text
<summary>New Defines a visible heading for a <details> element
<sup> Defines superscripted text
<table> Defines a table
<tbody> Groups the body content in a table
<td> Defines a cell in a table
<textarea> Defines a multiline input control (text area)
<tfoot> Groups the footer content in a table
<th> Defines a header cell in a table
<thead> Groups the header content in a table
<time>New Defines a date/time
<title> Defines a title for the document
<tr> Defines a row in a table
<track>New Defines text tracks for media elements (<video> and <audio>)
<tt> Not supported in HTML5. Defines teletype text
<u> Defines text that should be stylistically different from normal text
<ul> Defines an unordered list
<var> Defines a variable
<video>New Defines a video or movie
<wbr>New Defines a possible line-break

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