This site is based on the principles of web design principles, the main content of the site is divided into two blocks:
1. The top of the web page
2. The center of the web page
The accesskey for this website are set as follows:
Alt + U：The top of the functional blocks, including language version selection, the main menu and so on.
Alt + C：Central content block, this block presents the main content of the page.
Note: The operation to activate the accesskey depends on Google Chrome for Windows.
Check the accesskey on other browsers and different devices: MDN web docs - accesskey