The last point has especially been a source of much frustration among professions that are used to be in control of paper-based publishing. The proposed scheme is balanced in the sense that it provides author and reader with the same notation for specifying style. Designing a style sheet notation that fill both groups' needs is a challenge. The LINK element is used to indicate the URL of the style sheet. Multiple style sheets can be referenced from the same document, and will be appended to the cascade and merged as they are encountered.
Style sheets can reference other style sheets, and the cascase can be infinitely long.
Browsers will have to limit the length of the cascade. Fetching and processing the cascade is potentilally expensive, but caching will reduce the cost. Some simple examples Rather than providing a formal definition of the style sheet language, this proposal includes examples that indicate where work in progress is heading. The concepts of cascading and weighted influence is more important than the specific list of style values that can be set. If the statement comes in a later style sheet, any unclaimed influence is granted.