Also, be aware that you can distract readers from content by offering too much visual stimulation. Flashing text can be annoying, and some textured backgrounds detract from readability. Finally, keep in mind that some people won't be able to view your images. No matter what type of online document you plan to publish, it's essential that you test it on a variety of browsers and hardware platforms. A Web document can look very different depending on the user's setup.
Matters are further complicated by the added features some browsers offer.
Netscape, for example, has extensions that let you create special layouts and design effects, but some of these can only be viewed by other Netscape users. Since more people use Netscape than any other browser, a case can be made for using these extensions. However, if you want to ensure that everyone on the Web can view all parts of your document, your HTML code should comply with the standards established by the World Wide Web Consortium. The references in the box below offer many insights about online design.