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How to use the <base> tag to define the base URL for an HTML page?


The HTML <base> tag is to display the base URL/target for all relative URLs. The tag comes inside the HTML <head>…</head> tag. You can set the base URL once at the top of your page in header section, and all subsequent relative links will use that URL as a starting point.

The following are the attributes of the HTML <base> tag −

Attribute
Value
Description
href
URL
The base URL
target
_blank
_parent
 _self
_top
Where to open the target URL:
_blank − the target URL will open in a new window.
_self − the target URL will open in the same frame as it was clicked.
_parent − the target URL will open in the parent frameset
_top − the target URL will open in the full body of the window

Example

You can try to run the following code to learn about the HTML <base> tag

<!DOCTYPE html>
<html>
   <head>
      <title>HTML base Tag</title>
      <base href = "https://www.tutorialspoint.com" />
   </head>
   <body>
      HTML: <br><img src = "/images/html.gif" />
   </body>
</html>