An Animated and Reactive Web

All the elements on a page can then be altered. You can move images, animate them and apply special effects to them. You can also implement interactivity by adding buttons which, for instance, can reveal or hide a section of a page. You have probably already seen drop-down navigation menus that open when the mouse pointer hovers over them. Here again, DHTML underlies such effects.

In short, you can alter all or part of a page on the fly. With DHTML, a site can look like an interactive CD-ROM. The interface can be changed at will.