Ever wonder why they are called “cascading” style sheets? CSS allows you to apply several style sheets to the same document, which means there are bound to be conflicts. CSS handles such conflicts through a process known as the cascade.
The cascade refers to what happens when several sources of style information vie for control of the elements on a page: style information is passed down (“cascades” down) until it is overridden by a style command with more weight. Read more ›