Weblabor

With even a moderately complicated stylesheet, it is likely that two or more rules will target the same element. CSS handles such conflicts through a process known as the cascade. The cascade works by assigning an importance to each rule. Author stylesheets are considered the most important, followed by user stylesheets, and finally the default stylesheets used by your browser or user agent. To give users more control, they can override any rule by specifying it as !important—even a rule flagged as !important by the author.