This document discusses how to streamline website development using Dreamweaver templates and cascading style sheets (CSS). CSS allows applying styles consistently across pages for control over layout and appearance. Styles can be included inline, in a single page, or externally in a separate .css file to be used on multiple pages. The box model is also explained, which defines the content, padding, border, and margin areas of elements. The document recommends setting up a template page in Dreamweaver with common elements, then creating new pages based on that template to maintain consistency across a site.