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HTML <base> Tag


Example

Specify a default URL and a default target for all links on a page:

<head>
<base href="http://www.w3schools.com/images/" target="_blank">
</head>

<body>
<img src="stickman.gif" width="24" height="39" alt="Stickman">
<a href="http://www.w3schools.com">W3Schools</a>
</body>

Try it Yourself »

Definition and Usage

The <base> tag specifies the base URL/target for all relative URLs in a document.

There can be at maximum one <base> element in a document, and it must be inside the <head> element.


Browser Support

Element
<base> Yes Yes Yes Yes Yes


Tips and Notes

Tip: Put the <base> tag as the first element inside the <head> element, so that other elements in the head section uses the information from the <base> element.

Note: If the <base> tag is present, it must have either an href attribute or a target attribute, or both.


Differences Between HTML 4.01 and HTML5

NONE.


Differences Between HTML and XHTML

In HTML the <base> tag has no end tag.

In XHTML the <base> tag must be properly closed.


Attributes

Attribute Value Description
href URL Specifies the base URL for all relative URLs in the page
target _blank
_parent
_self
_top
framename
Specifies the default target for all hyperlinks and forms in the page


Global Attributes and Events

The <base> tag also supports the Global Attributes in HTML.


Event Attributes

NONE. The <base> tag does not support any event attributes.


Related Pages

HTML DOM reference: Base Object


Default CSS Settings

None.



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