Understanding the Cascade Multiple style sheets can affect page elements and build upon each other. It’s like inheriting styles within a Web page. This is the cascading part of CSS. Take this real-world example of a Web site for a university English department. The English department is part of the School of Humanities, which is one school in the university. Each of these entities — the university, the school, and the English department — has its own style sheet. 1. The university’s style sheet provides style rules for all pages in the site. 2. The school’s style sheet links to the university’s style sheet (using an @import statement), and adds more style rules specific to the look the school wants for its own site