The overall design of this website is arranged according to the Web Accessibility Principles.
The website is divided into three areas:
Alt + U:Upper column function area: including "Return to Homepage", "Site Map", "Search the Site" and others.
Alt + C:Central content area: the main content area of the page.
Alt + S:Search the site.
Alt + F:Lower column function area: "External Links" and "Copyright Notice".

The structure of this website is as follows