This site in accordance with the principles of barrier-free web design and build, the main kind of Web site content is divided into three major blocks:
1) Navigation and links, 2) Content and 3) Relevant information

Easy button on this website (Accesskey, also known as anchor) settings are as follows:
Alt+U：Go to "Navigation and links", which lists all the major links of the website.
Alt+C：The middle region, this block shows the contents of the web page.
Alt+L：the left region, including the units of this block under the floor of their links with other relevant information.