HTML Tags Ordered Alphabetically

= New in HTML5.

Tag Description
<!--...--> Defines a comment
<!DOCTYPE>  Defines the document type
<a> Defines a hyperlink
<abbr> Defines an abbreviation or an acronym
<acronym> Not supported in HTML5. Use <abbr> instead.
Defines an acronym
<address> Defines contact information for the author/owner of a document
<applet> Not supported in HTML5. Use <embed> or <object> instead.
Defines an embedded applet
<area> Defines an area inside an image-map
<article> Defines an article
<aside> Defines content aside from the page content
<audio> 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. Use CSS instead.
Specifies a default color, size, and font for all text in a document
<bdi> 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. Use CSS instead.
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> Used to draw graphics, on the fly, via scripting (usually JavaScript)
<caption> Defines a table caption
<center> Not supported in HTML5. Use CSS instead.
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
<datalist> Specifies a list of pre-defined options for input controls
<dd> Defines a description/value of a term in a description list
<del> Defines text that has been deleted from a document
<details> Defines additional details that the user can view or hide
<dfn> Represents the defining instance of a term
<dialog> Defines a dialog box or window
<dir> Not supported in HTML5. Use <ul> instead.
Defines a directory list
<div> Defines a section in a document
<dl> Defines a description list
<dt> Defines a term/name in a description list
<em> Defines emphasized text 
<embed> Defines a container for an external (non-HTML) application
<fieldset> Groups related elements in a form
<figcaption> Defines a caption for a <figure> element
<figure> Specifies self-contained content
<font> Not supported in HTML5. Use CSS instead.
Defines font, color, and size for text
<footer> 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> Defines a header for a document or section
<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
<label> Defines a label for an <input> element
<legend> Defines a caption for a <fieldset> element
<li> Defines a list item
<link> Defines the relationship between a document and an external resource (most used to link to style sheets)
<main> Specifies the main content of a document
<map> Defines a client-side image-map
<mark> Defines marked/highlighted text
<menu> Defines a list/menu of commands
<menuitem> Defines a command/menu item that the user can invoke from a popup menu
<meta> Defines metadata about an HTML document
<meter> Defines a scalar measurement within a known range (a gauge)
<nav> 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> Defines the result of a calculation
<p> Defines a paragraph
<param> Defines a parameter for an object
<picture> Defines a container for multiple image resources
<pre> Defines preformatted text
<progress> Represents the progress of a task
<q> Defines a short quotation
<rp> Defines what to show in browsers that do not support ruby annotations
<rt> Defines an explanation/pronunciation of characters (for East Asian typography)
<ruby> 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> Defines a section in a document
<select> Defines a drop-down list
<small> Defines smaller text
<source> Defines multiple media resources for media elements (<video> and <audio>)
<span> Defines a section in a document
<strike> Not supported in HTML5. Use <del> or <s> instead.
Defines strikethrough text
<strong> Defines important text
<style> Defines style information for a document
<sub> Defines subscripted text
<summary> 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> Defines a date/time
<title> Defines a title for the document
<tr> Defines a row in a table
<track> Defines text tracks for media elements (<video> and <audio>)
<tt> Not supported in HTML5. Use CSS instead.
Defines teletype text
<u> Defines text that should be stylistically different from normal text
<ul> Defines an unordered list
<var> Defines a variable
<video> Defines a video or movie
<wbr> Defines a possible line-break


HTML Entities

Reserved characters in HTML must be replaced with character entities.

Characters that are not present on your keyboard can also be replaced by entities.

HTML Entities

Some characters are reserved in HTML.

If you use the less than (<) or greater than (>) signs in your text, the browser might mix them with tags.

Character entities are used to display reserved characters in HTML.

A character entity looks like this:

&entity_name;

OR

&#entity_number;

To display a less than sign (<) we must write: &lt; or &#60;

Advantage of using an entity name: An entity name is easy to remember.
Disadvantage of using an entity name: Browsers may not support all entity names, but the support for numbers is good.

Non-breaking Space

A common character entity used in HTML is the non-breaking space: &nbsp;

A non-breaking space is a space that will not break into a new line.

Two words separated by a non-breaking space will stick together (not break into a new line). This is handy when breaking the words might be disruptive.

Examples:

Another common use of the non-breaking space is to prevent that browsers truncate spaces in HTML pages.

If you write 10 spaces in your text, the browser will remove 9 of them. To add real spaces to your text, you can use the &nbsp; character entity.

The non-breaking hyphen (&#8209;) lets you use a hyphen character (‑) that won't break.

Some Other Useful HTML Character Entities

Result Description Entity Name Entity Number
non-breaking space &nbsp; &#160;
< less than &lt; &#60;
> greater than &gt; &#62;
& ampersand &amp; &#38;
" double quotation mark &quot; &#34;
' single quotation mark (apostrophe) &apos; &#39;
¢ cent &cent; &#162;
£ pound &pound; &#163;
¥ yen &yen; &#165;
€ euro &euro; &#8364;
© copyright &copy; &#169;
® registered trademark &reg; &#174;

Note: Entity names are case sensitive.

Combining Diacritical Marks

A diacritical mark is a "glyph" added to a letter.

Some diacritical marks, like grave (  ̀) and acute (  ́) are called accents.

Diacritical marks can appear both above and below a letter, inside a letter, and between two letters.

Diacritical marks can be used in combination with alphanumeric characters, to produce a character that is not present in the character set (encoding) used in the page.

Here are some examples:

Mark Character Construct Result
 ̀ a a&#768; à
 ́ a a&#769; á
̂ a a&#770; â
 ̃ a a&#771; ã
 ̀ O O&#768; Ò
 ́ O O&#769; Ó
̂ O O&#770; Ô
 ̃ O O&#771; Õ