Individual dataverses are self-contained data archives hosted virtually on the Dataverse Network website. That is, the dataverse study files reside where the Dataverse Network software is installed. However, as an administrator you can customize your dataverse pages with a look and feel that matches your own branded website, with navigation links to and from your site and the dataverse. As a result you can integrate the styles of your dataverse web page to present the same appearance as your branded website.
See topic: Edit Layout Branding