Setting the Base for Relative URLs

The base element sets a base URL.

It is then used with relative links in the HTML document. A relative link omits the protocol, host, and port parts of the URL. A relative URL is valuated against by either the base element or the URL used to load the document. An HTML document should contain at most one base element.

The href attribute specifies the base URL.

 
<!DOCTYPE HTML>
<html>
<head>
<title>Example</title>
<base href="http://yourServer/listings/" />
</head>
<body>
      <p>
            I like <code>HTML</code> and CSS.
      </p>
      <a href="http://java2s.com">Visit java2s.com</a>
      <a href="page2.html">Page 2</a>
</body>
</html>

The target attribute tells the browser how to open URLs. The values you specify for this attribute represent a browsing context.