Throughout this book, you've learned concepts critical to working with structured markup, CSS, and related concerns such as accessibility. You've learned theory and application, and have seen examples of working websites that use CSS as a means to push web design to new heights.
As the future unfolds and CSS becomes more familiar to you and other designers, there is no doubt that new and exciting ways of managing design will emerge. I hope you are as hopeful as I am that CSS will bring a new means of inspiring designers and make our responsibilities significantly more manageable and flexible.