Using external file style sheets, a single style sheet can describe multiple pages. This makes page, and even site-wide, changes easy to carry out. This flexibility allows manufacturers and broadcasters the possibility of creating different styles for targeted audiences, such as specific geographies or to support viewers with specific needs based on physical disabilities etc. This proposal requires support for CSS1 . It is a key component in allowing dynamic content on a web page.
Vendors can define proprietary scripting languages where appropriate.
In practice on the World Wide Web, MIME types are often associated with particular file extensions to indicate data types. When data is referenced on an HTML page, the file extension is often used to determine the MIME type of the data. This allows the HTML engine to associate a rendering engine with a data on a page. The MIME types directly reflect the data types that are required to be supported. This proposal allows the use of trigger delivery using IP encapsulation of trigger structures.