Currently when a designer produces a Web page he or she specifies the fonts that are required for the page using the facilities of HTML. When the page is displayed, the browser looks at the fonts that are currently installed in the client computer. If the right ones are installed, they are used: if not they are substituted by fonts which are closest to the ones used. This font substitution can mean that the design balance of the page can be spoiled. Because of this, Web designers resort to a number of strategies. The two most common are keeping to fonts which will almost invariably be implemented, such as Times Roman, and using text GIFS. In order to overcome the problems of font substitution the World Wide Web Consortium is developing a standard whereby fonts can be embedded into a Web page using cascading style sheets. Such fonts are known either as Embedded Fonts or dynamic fonts. The former term is used by the Microsoft Corporation while the latter is used by the Netscape Corporation.