1.INTRODUCTION
1.1 What is a Style-Sheet?
Style sheets describe how documents are presented on screens,in print ,or perhaps how they are pronounced.By attaching style sheet to the structured documents on the Web authors and readers can influence the presentation on documents without sacrificing device-independence or adding new HTML tags.
Web style sheets have been around for a number of years, but their power and importance went largely unnoticed since few implementations existed. Web authors, anxious to add creativity to their pages by influencing the presentation, began to use Netscape's proprietary extensions rather than the more powerful style sheets.