This website is built according to the principle of accessible web design. The main sample content of the website is divided into two large blocks:

1. Top menu area 2. Main content area

The convenient keys (Accesskey, also known as the Quick Keys) of this website are set as follows:
Alt U：main menu area, this section contains a link to the site's main menu.
Alt C：Content block, providing information on various pages of web content.