About this book<br><br>The world of CSS is maturing. More and more web developers in the industry are realizing that while they “know” CSS, they don’t know it as deeply as they probably should. In recent years, the language has evolved, so even those developers who were once adept at CSS may find a whole new set of skills to catch up on. This book aims to meet both these needs: providing a deep mastery of the language, and bringing you up to speed on recent developments and new features of CSS.