HTML <base> Tag


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

<base href="" target="_blank">

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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

<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


Differences Between HTML and XHTML

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

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


Attribute Value Description
href URL Specifies the base URL for all relative URLs in the page
target _blank
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


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