HTML Attributes

HTML Attributes:Attributes provide additional information about HTML elements.

• HTML elements can have attributes
• Attributes provide additional information about an element
• Attributes are always specified in the start tag
• Attributes come in name/value pairs like: name="value"

Attribute Example

HTML links are defined with the <a> tag. The link address is specified in the href attribute:

Example

<a href="http://www.abc.com">This is a link</a>

Always Quote Attribute Values

Attribute values should always be enclosed in quotes.
Double style quotes are the most common, but single style quotes are also allowed.
In some rare situations, when the attribute value itself contains quotes, it is necessary to use single quotes: name='John "ShotGun" Nelson'

Use Lowercase Attributes

Attribute names and attribute values are case-insensitive.
However, the World Wide Web Consortium (W3C) recommends lowercase attributes/attribute values in their HTML 4 recommendation.
Newer versions of (X)HTML will demand lowercase attributes.

HTML Attributes Reference

Below is a list of some attributes that are standard for most HTML elements:

Attribute		Value		Description
class		classname		Specifies a classname for an element
id		id		Specifies a unique id for an element
style		style_definition		Specifies an inline style for an element
title		tooltip_text		Specifies extra information about an element (displayed as a tool tip)