Cascading tree sheets and recombinant HTML: better encapsulation and retargeting of web content

Cascading Style Sheets (CSS) took a valuable step towards separating web content from presentation. But HTML pages still contain large amounts of “design scaffolding ” needed to hierarchically layer content for proper presentation. This pa-per presents Cascading Tree Sheets (CTS), a CSS-like lan-guage for separating this presentational HTML from real content. With CTS, authors use standard CSS selectors to describe how to graft presentational scaffolding onto their pure-content HTML. This improved separation of content from presentation enables even naive authors to incorporate rich layouts (including interactive Javascript) into their own pages simply by linking to a tree sheet and adding some class names to their HTML