Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
Learn about guidelines for constructing a left-navigation menu, dynamically inserting pages into the menu, and maintaining breadcrumb prefixes.
Learn how to use the navigation button to highlight key content links.
Learn about two navigation modules that can essentially extend a left-navigation menu: the fourth-level navigation module and the multi-page module.
Learn how to use a U.S. or world map as a navigation aid (for example, to profile pages on states or countries).
Find out how you can use the “On This Page” module to help visitors navigate long content pages.
Read about CDC’s policy for linking to external sites and see examples of how external links are represented in various WCMS content elements.
An official website of the United States government
