ExampleSpecify a default URL and a default target for all links on a page: <head> <base href="http://www.google.com/" target="_blank" /> </head> <body> <img src="image.gif" /> <a href="http://www.google.com/">Google</a> </body> | Browser Support |
1. Definition and Usage
The <base> tag specifies the base URL/target for all relative URLs in a document.
The <base> tag goes inside the <head> element.
2. 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.
3. Differences Between HTML 4.01 and HTML5
None
4. Differences Between HTML and XHTML
In HTML the <base> tag has no end tag.
In XHTML the <base> tag must be properly closed.
5. 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 |
|---|---|---|---|
| href | URL | Specifies a base URL for all relative URLs on a page. Note: The base URL must be an absolute URL! | STF |
| target | _blank _parent _self _top framename | Specifies the default target for all hyperlinks and forms in the page | TF |
6. Standard Attributes
The <base> tag supports the Standard Attributes in HTML.
7. Event Attributes
The <base> tag also supports the Standard Event Attributes in HTML.
