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The <base> tag

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Definition and Usage

The base element defines a default reference to external resources. 

If you use a frameset, you can use this tag with the target attribute to tell all links in your page to open in the same frame. If you do not use frames,  this tag with the href attribute defines a default reference to external resources such as documents, images and style sheets. 


Tips and Notes

Note: The <base> tag must go inside the head element.

Note: The end tag is forbidden.


Examples

The absolute address for an image (on this web site) is:

<img src="http://www.w3schools.com/images/back40.gif">

When we use the <base> tag we can specify the default reference in the head section:

<base href="http://www.w3schools.com/">

Then when we want to insert an image later in the document we just write the relative address, instead of the absolute address: 

<img src="images/smile.gif">


Optional Attributes

Attributes: Values: Description:
href url Defines the default base address for relative links
target _blank
_parent
_self
_top
Where to open the linked document. The base target can be overridden by using the target attribute in a link.

When using "_blank" the link will load in a new window. 

When using "_self" the link will load in the same frame it was clicked. 

When using "_parent" the link will load in the parent frameset. 

When using "_top" the link will load in the full body of the window



Standard Attributes and Events: NONE


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