Microsoft's Internet Explorer and its Active Desktop integrate tightly with Windows 95 and Windows NT, and they attempt to blur the distinction between information stored locally on your hard disk and information out on the network or the larger Internet. Part of the idea behind Netcaster is that a user could sit down at any PC and get a replica of his standard desktop environment from a server. No surprise there. Additionally, the browsers are becoming better integrated with other Internet client software such as mail and news readers. Secondly, CSS provides more precise control over such features as the appearance of type, margins, and so forth.
Layers are probably the most exciting of the three technologies.
Layers allow absolute positioning of information on the screen, so designers can specify precise horizontal and vertical coordinates.