The <base> tag

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:

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

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

Optional Attributes

Standard Attributes and Events: NONE

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