Cascading Style Sheets is the future of Web design, giving designers superior control of layout and ease of updating throughout a site. Lesson Seven builds the fundamentals you need to know about CSS for professional Web design. You'll look at the pros and cons of CSS compared to straight HTML, and explore proper markup techniques for converting HTML sites to CSS, using external style sheets or the style method. A section on W3C Standards provides an overview of current trends, including the emergence of XML and how to test your site for standards compliance. In the exercise, you'll check a page for standards compliance and add CSS.