Definition and Usage
The <a> tag defines an anchor. An anchor can be used in two ways:- To create a link to another document, by using the href attribute
- To create a bookmark inside a document, by using the name attribute
The most important attribute of the a element is the href attribute, which indicates the link’s destination.
By default, links will appear as follows in all browsers:
- An unvisited link is underlined and blue
- A visited link is underlined and purple
- An active link is underlined and red
Browser Support
The <a> tag is supported in all major browsers.
Differences Between HTML and XHTML
In XHTML, the name attribute of the <a> tag is deprecated, and will be removed. Use the id attribute instead.Tips and Notes
Tip: Use CSS to style links!Optional Attributes
DTD indicates in which HTML 4.01/XHTML 1.0 DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.Attribute | Value | Description | DTD |
---|---|---|---|
charset | char_encoding | Specifies the character-set of a linked document | STF |
coords | coordinates | Specifies the coordinates of a link | STF |
href | URL | Specifies the destination of a link | STF |
hreflang | language_code | Specifies the language of a linked document | STF |
name | section_name | Specifies the name of an anchor | STF |
rel | text | Specifies the relationship between the current document and the linked document | STF |
rev | text | Specifies the relationship between the linked document and the current document | STF |
shape | default rect circle poly | Specifies the shape of a link | STF |
target | _blank _parent _self _top framename | Specifies where to open the linked document | TF |
Standard Attributes
The <a> tag supports the following standard attributes:Attribute | Value | Description | DTD |
---|---|---|---|
accesskey | character | Specifies a keyboard shortcut to access an element | STF |
class | classname | Specifies a classname for an element | STF |
dir | rtl ltr | Specifies the text direction for the content in an element | STF |
id | id | Specifies a unique id for an element | STF |
lang | language_code | Specifies a language code for the content in an element | STF |
style | style_definition | Specifies an inline style for an element | STF |
tabindex | number | Specifies the tab order of an element | STF |
title | text | Specifies extra information about an element | STF |
xml:lang | language_code | Specifies a language code for the content in an element, in XHTML documents | STF |
Event Attributes
The <a> tag supports the following event attributes:Attribute | Value | Description | DTD |
---|---|---|---|
onblur | script | Script to be run when an element loses focus | STF |
onclick | script | Script to be run on a mouse click | STF |
ondblclick | script | Script to be run on a mouse double-click | STF |
onfocus | script | Script to be run when an element gets focus | STF |
onmousedown | script | Script to be run when mouse button is pressed | STF |
onmousemove | script | Script to be run when mouse pointer moves | STF |
onmouseout | script | Script to be run when mouse pointer moves out of an element | STF |
onmouseover | script | Script to be run when mouse pointer moves over an element | STF |
onmouseup | script | Script to be run when mouse button is released | STF |
onkeydown | script | Script to be run when a key is pressed | STF |
onkeypress | script | Script to be run when a key is pressed and released | STF |
onkeyup | script | Script to be run when a key is released | STF |
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