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<Base> the tag specifies the default address or target for all links on the page.
Generally, the browser extracts the corresponding elements from the URL of the current document to fill in the blank space in the relative URL. You can use the <base> label to change the value. The browser will no longer use the URL of the current document, but will use the specified basic URL to parse all relative URLs. These include the URLs in the <a>, , <link>, and <form> labels.
Sample Code:
<Head> <base href = "http://www.w3school.com.cn/ I/"/> <base target = "_ blank"/>Here, the src attribute of the element is relative path. By default, you should use the path of the current document to expand this relative path. However, since the <base> element specifies the default address of the link, the basic path is extended with a http://www.w3school.com.cn/ I. Therefore, the actual value of the element src attribute is http://www.w3school.com.cn/ I /eg_smile.gif.
Similarly, the <base> element also specifies the default Link Target as _ blank. Therefore, when the <a> element does not specify the target attribute, the value of target is _ blank instead of the default _ self.
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