#main-content
This div will contain the web page's content.
this link has a class .external-link assigned to it and is assigned to all links pointing to a different domain.
#headerThis div will contain the logo, search bar, and the primary navigation.
#main-contentThis div will contain the web page's content.
this link has a class .external-link assigned to it and is assigned to all links pointing to a different domain.
secondary-contentThis div will contain secondary content and a sub-navigation menu.