Cascading Style Sheet
/kæˈskeɪdɪŋ staɪl ʃit/
A style sheet language used to define the presentation and display of a web page.
Cascading Style Sheet language is beneficial to web design in that is separates the content from the presentation display. Independent control of backgrounds, fonts, color, and layout allow for more dynamic web development by making it easier to add or change content that will maintain a uniform look with the rest of the website.