How Do Style Sheets Cascade?
First things first – what is a cascade? A cascade is a succession of stages, processes, operations or units. The CSS cascade is made up of a succession of style sheets each influencing how a web page looks. The succession deals with the sorting and prioritizing of the rules that define the style of a page. CSS is about the conflicts between style rules, and how they are settled. Always keep that in mind and you’ll be well on your way towards effectively using its awesome power. Which is why you are here!! If you think about how you can cascade layers, as in the graphic on the right, you’ll get a visual picture of how CSS works. User agents (web browsers , if you prefer) support three style sheet types. The three types of style sheets are Browser Style Sheet, User Style Sheet and Designer Style Sheet. (To make things a tad more interesting, the Cascade model is also used to prioritize the style rules that you, as designer, create in the Designer Style Sheet. In the Designer Style Sheet,
