Nested templates (middle row) let you build templates that share common, sitewide design elements while giving you precise control over pages unique to each section of the site. A page built from a nested template (bottom row) contains both elements from your master template (top row)&#x2014;like a banner and a sitewide navigation bar&#x2014;in addition to elements specific to the nested template&#x2014;like a section-specific secondary navigation bar. Dreamweaver passes changes you make to the master template on to all of the site's pages, including those created from the nested templates. Changes you make to a nested template, by contrast, end up on only the pages you build with that nested template.