In the Introduction to CSS chapter, you'll dive into the world of Cascading Style Sheets (CSS), the language used to style and visually enhance HTML content. CSS enables you to transform plain HTML pages into visually appealing websites by applying styles such as colors, fonts, layouts, and spacing. You'll learn how to use selectors, properties, and values to target HTML elements and apply specific styles. This chapter covers the basics of CSS syntax, how to link CSS to your HTML, and the concepts of the box model and positioning. By the end of this chapter, you'll be equipped to design and implement aesthetic improvements, ensuring your web pages are not only functional but also visually engaging.