The most important tag in web pages is the <a> tag pair, which makes the enclosed text into link to another file. The links between web pages are what makes the Web into, well, a web. The browser displays a link in a special way (for example, underlined text in blue color).

Here is the code for a typical link:

<a href =”http://java.sun.com”> Java </a> is an object-oriented programming language.

When the viewer of the web page clicks on the word Java the browser loads the web page located at java.sun.com. (The value of the href attribute is a Universal Resource Locator (URL), which tells the browser where to go. The prefix http:, for Hypertext Transfer Protocol, tell the browser to fetch the file as a web page.
Other protocols allow different actions, such as ftp: to download a file, mailto: to send e-mail to a user, and file: to view a local HTML file.

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