But it's easy to overdo it. Video, sound and graphic files are large and take a long time to download, especially with a modem. Most pictures aren't really necessary and are present mostly for decoration and because they look cool. You need to find a balance between what looks good, and what is painful to the people who download and read your pages. A self-explanatory example of how not to design a Web page.
Some browsers support a feature called blink.
It allows you to place a highlighted bar, which continually blinks on and off, over selected words or phrases on your Web page. Most style guides concur that it's annoying. Use it sparingly if at all. Backgrounds Netscape supports background colours and textures for your page. This feature can be used to great effect, but it can also render your text difficult to read.