HTML | base Tag

The HTML base tag is used to specify a base URI, or URL, for relative links. This URL will be the base URL for every link on the page and will be prefixed before each of them. For example, if the URL specified by base tag is “” and then every other URL on the page will be prefixed by, “”.


<base href = "SAMPLE_URL" />

Example: Notice that we have only specified a relative address for the image. Since we have specified a base URL in the head section, the browser will look for the image at “”. That is in the below program we have specified a base URL “” for all of the links and when we are referring to the image at URL “1-95.jpg” then the browser is actually rendering the image from “”.





<!DOCTYPE html>
    <!-- Declaring the BASE URL -->
    <base href=
    <img src="1-95.jpg" width="400" height="250">



Important Points:

  • The base tag must be defined between the head tags.
  • There can be a maximum of only 1 base tag in a page.

Supported Browser: The browser supported by <base> tag are listed below:

  • Google ChromeChrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari
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