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HyperText Markup Language/Standard Attributes List
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Below is a list of all attributes which are available for most elements in HTML.
You can also view a list of HTML elements.
Attributes
class
This attribute allows you to designate an element to be a member of a given class. Multiple elements can be assigned to the same class (eg. <p class="foo"> ... </p> <p class="foo"> ... </p>), as well as a single element belonging to multiple classes (eg. <p class="foo bar"> ... </p>).
code
codebase
dir
With this attribute you can define which direction the text is written for a given element, either ltr for left-to-right or rtl for right-to-left.
height
Setting this attribute with a numerical value defines the height of an element in pixels (eg. <div height="150"> ... </div>)
id
This attribute allows you to define a unique identifier for each element. This would be useful for hyperlinks that link to a specific section of a page or when styling using a style sheet.
lang
With this attribute you can specify a language that is used for an element.
style
This attribute allows you to apply specific styling to a given element.
title
With this attribute you can define what will be displayed when a user hovers the element. It is not available for base, head, html, meta, param, script, style, and title.
width
Setting this attribute with a numerical value defines the width of an element in pixels (eg. <div width="230"> ... </div>)
More attributes
accesskey
The accesskey attribute defines a keyboard shortcut for a hyperlink or form element.
The combination of keys need to activate the shortcut varies from browser to browser. In Microsoft Internet Explorer the user must press Alt+accesskey. If the shortcut is for a link the user must then press Enter to follow the link. The choice of Alt+accesskey means that access keys can clash with shortcuts built-in to the browser.
It is quite common to use numbers for the access keys since these don't clash with any major browser's built-in shortcuts, e. g.
1 = Home Page
0 = List of access keys on this website.
<div id="navigation">
<h2>Navigation</h2>
<ul>
<li><a accesskey="1" href="/">Home page</a></li>
<li><a accesskey="2" href="/about">About</a></li>
<li><a accesskey="0" href="/accesskeys">Access keys</a></li>
</ul>
</div>
There is no standard way to let users know the access keys that are available on the page. Some suggestions can be found in Accesskeys: Unlocking Hidden Navigation.
tabindex